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Vegetal Teratology

http://www.gutenberg.org/etext/23354
by Maxwell T. Masters
1358 words 3 learners

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  1. Abies
    true firs
  2. abortive
    failing to accomplish an intended result
  3. acacia
    any of various spiny trees or shrubs
  4. acarine
    mite or tick
  5. acaulescent
    (of plants) having no apparent stem above ground
  6. Acer platanoides
    a large Eurasian maple tree naturalized in North America
  7. achimenes
    any plant of the genus Achimenes having showy bell-shaped flowers that resemble gloxinias
  8. aconite
    any of various usually poisonous plants of the genus Aconitum having tuberous roots and palmately lobed leaves and blue or white flowers
  9. Aconitum
    genus of poisonous plants of temperate regions of northern hemisphere with a vaulted and enlarged petal
  10. Acorus
    sweet flags; sometimes placed in subfamily Acoraceae
  11. acuminate
    (of a leaf shape) narrowing to a slender point
  12. acute
    ending in a sharp point
  13. Adenium
    one species: succulent shrub or tree of tropical Africa and Arabia
  14. Adenium obesum
    South African shrub having a swollen succulent stem and bearing showy pink and white flowers after the leaves fall; popular as an ornamental in tropics
  15. adhesion
    the property of sticking together
  16. adnate
    of unlike parts or organs; growing closely attached
  17. adventitious
    associated by chance and not an integral part
  18. adventitious root
    root growing in an unusual location e.g. from a stem
  19. Aesculus
    deciduous trees or some shrubs of North America
  20. Agaricus
    type genus of Agaricaceae
  21. agave
    a tropical American plant with sword-shaped leaves
  22. Agave americana
    widely cultivated American monocarpic plant with greenish-white flowers on a tall stalk; blooms only after ten to twenty years and then dies
  23. agrimonia
    a plant of the genus Agrimonia having spikelike clusters of small yellow flowers
  24. Agrostemma
    a caryophylloid dicot genus including corn cockles
  25. Agrostis
    annual or perennial grasses cosmopolitan in northern hemisphere: bent grass (so named from `bent' meaning an area of unfenced grassland)
  26. Agrostis alba
    slender European grass of shady places
  27. ailanthus
    any of several deciduous Asian trees of the genus Ailanthus
  28. Ajuga
    bugle
  29. Ajuga pyramidalis
    European evergreen carpeting perennial
  30. Ajuga reptans
    low rhizomatous European carpeting plant having spikes of blue flowers; naturalized in parts of United States
  31. albinism
    the absence of pigmentation in the eyes, skin, and hair
  32. Alcea
    genus of erect herbs of the Middle East having showy flowers: hollyhocks; in some classification systems synonymous with genus Althaea
  33. alder
    north temperate shrubs or trees having toothed leaves and conelike fruit; bark is used in tanning and dyeing and the wood is rot-resistant
  34. Aldrovanda
    one species: waterwheel plant
  35. Aldrovanda vesiculosa
    floating aquatic carnivorous perennial of central and southern Europe, Africa, Asia, Australia having whorls of 6 to 9 leaves ending in hinged lobes for capturing e.g. water fleas
  36. aliquot
    signifying an exact divisor or factor of a quantity
  37. Alisma
    small genus of aquatic or semiaquatic plants
  38. allamanda
    a plant of the genus Allamanda having large showy funnel-shaped flowers in terminal cymes
  39. Allamanda cathartica
    vigorous evergreen climbing plant of South America having glossy leathery foliage and golden yellow flowers
  40. Alliaria
    a genus of herbs of the family Cruciferae
  41. Alliaria officinalis
    European herb that smells like garlic
  42. Allium
    large genus of perennial and biennial pungent bulbous plants: garlic; leek; onion; chive; sometimes placed in family Alliaceae as the type genus
  43. allotropism
    the phenomenon of an element existing in two or more physical forms
  44. Alnus
    alders
  45. Alnus incana
    native to Europe but introduced in America
  46. Alopecurus
    annual or perennial grasses including decorative and meadow species as well as notorious agricultural weeds
  47. Alopecurus pratensis
    stout erect perennial grass of northern parts of Old World having silky flowering spikes; widely cultivated for pasture and hay; naturalized in North America
  48. alternation of generations
    the alternation of two or more different forms in the life cycle of a plant or animal
  49. Alyssum
    a genus of the family Cruciferae
  50. amaryllis
    bulbous plant having showy white to reddish flowers
  51. amentaceous
    (of plants) bearing or characterized by aments or catkins
  52. amnio
    (pregnancy) extraction by centesis of amniotic fluid from a pregnant woman (after the 15th week of pregnancy) to aid in the diagnosis of fetal abnormalities
  53. amorpha
    any plant of the genus Amorpha having odd-pinnate leaves and purplish spicate flowers
  54. Amorpha fruticosa
    dense shrub of moist riverbanks and flood plains of the eastern United States having attractive fragrant foliage and dense racemes of dark purple flowers
  55. Amygdalus
    used in former classifications for peach and almond trees which are now included in genus Prunus
  56. Amygdalus communis
    small bushy deciduous tree native to Asia and North Africa having pretty pink blossoms and highly prized edible nuts enclosed in a hard green hull; cultivated in southern Australia and California
  57. Anagallis
    chiefly Old World herbs
  58. Anagallis arvensis
    herb with scarlet or white or purple blossoms that close at approach of rainy weather
  59. Anagallis tenella
    small creeping European herb having delicate pink flowers
  60. anal
    of or related to the anus
  61. analogue
    something similar or equivalent to something else
  62. anastomosis
    a natural or surgical joining of parts or branches of tubular structures so as to make or become continuous
  63. anatomical structure
    a particular complex anatomical part of a living thing
  64. anatropous
    completely inverted; turned back 180 degrees on its stalk
  65. anatropous ovule
    a completely inverted ovule turned back 180 degrees on its stalk
  66. anchusa
    any of various Old World herbs of the genus Anchusa having one-sided clusters of trumpet-shaped flowers
  67. androgynous
    having both male and female characteristics
  68. anemone
    a marine polyp that resembles a flower
  69. anemone
    a marine polyp that resembles a flower
  70. Anemone nemorosa
    European anemone with solitary white flowers common in deciduous woodlands
  71. angelica
    any of various tall and stout herbs of the genus Angelica having pinnately compound leaves and small white or greenish flowers in compound umbels
  72. animal kingdom
    taxonomic kingdom comprising all living or extinct animals
  73. annular
    shaped like a ring
  74. Anomala
    genus of beetles whose grubs feed mainly on roots of plants
  75. anomaly
    deviation from the normal or common order, form, or rule
  76. anterior
    of or near the head end or toward the front plane of a body
  77. Anthemis
    dog fennel
  78. Anthemis arvensis
    European white-flowered weed naturalized in North America
  79. Anthemis nobilis
    Eurasian plant with apple-scented foliage and white-rayed flowers and feathery leaves used medicinally; in some classification systems placed in genus Anthemis
  80. anther
    the part of the stamen that contains pollen
  81. antheral
    capable of fertilizing female organs
  82. Anthriscus
    chervil: of Europe, North Africa and Asia
  83. anthurium
    any of various tropical American plants cultivated for their showy foliage and flowers
  84. Anthyllis
    genus of Mediterranean herbs and shrubs
  85. Antirrhinum
    a genus of herbs of the family Scrophulariaceae with brightly colored irregular flowers
  86. Antirrhinum majus
    perennial native to the Mediterranean but widely cultivated for its purple or pink flowers
  87. apetalous
    (of flowers) having no petals
  88. apetalous flower
    flower having no petals
  89. apex
    the highest point of something
  90. Apium
    celery
  91. Apium graveolens
    herb of Europe and temperate Asia
  92. apocarpous
    (of ovaries of flowering plants) consisting of carpels that are free from one another as in buttercups or roses
  93. appendage
    a part that is joined to something larger
  94. appendicular
    relating to or consisting of an appendage or appendages
  95. aquilegia
    a plant of the genus Aquilegia having irregular showy spurred flowers; north temperate regions especially mountains
  96. Aquilegia canadensis
    columbine of eastern North America having long-spurred red flowers
  97. Aquilegia vulgaris
    common European columbine having variously colored (white or blue to purple or red) short-spurred flowers; naturalized in United States
  98. Arabis
    annual to perennial woody herbs of temperate North America, Europe and Asia: rockcress
  99. araucaria
    any of several tall South American or Australian trees with large cones and edible seeds
  100. arbutus
    any of several evergreen shrubs of the genus Arbutus of temperate Europe and America
  101. Ardisia
    tropical evergreen subshrubs (some climbers) to trees of Asia and Australasia to Americas
  102. Arenaria
    turnstones
  103. Arenaria serpyllifolia
    Eurasian annual sprawling plant naturalized throughout North America
  104. Aristolochia
    birthworts; Dutchman's-pipe
  105. Armeria
    shrubby or herbaceous low-growing evergreen perennials
  106. Armoracia
    horseradish
  107. Armoracia rusticana
    coarse Eurasian plant cultivated for its thick white pungent root
  108. Arnoseris
    lamb succory
  109. artemisia
    any of various composite shrubs or herbs of the genus Artemisia having aromatic green or greyish foliage
  110. articulated
    consisting of segments held together by joints
  111. Artocarpus
    evergreen Asiatic trees now grown through the tropics: breadfruit; jackfruit
  112. arum
    any plant of the family Araceae
  113. Arum maculatum
    common European arum with lanceolate spathe and short purple spadix; emerges in early spring; source of a starch called arum
  114. Asa Gray
    United States botanist who specialized in North American flora and who was an early supporter of Darwin's theories of evolution (1810-1888)
  115. ASCII
    (computer science) a code for information exchange between computers made by different companies; a string of 7 binary digits represents each character; used in most microcomputers
  116. asparagus
    plant with long green stems that is eaten as a vegetable
  117. Asphodelus
    small genus of tall striking annuals or perennials with grasslike foliage and flowers in dense racemes or panicles; Mediterranean to Himalayas; sometimes placed in family Asphodelaceae
  118. Asplenium
    in some classification systems placed in family Polypodiaceae
  119. astrantia
    any plant of the genus Astrantia
  120. Astrantia major
    European herb with aromatic roots and leaves in a basal tuft and showy compound umbels of white to rosy flowers
  121. atlas
    a collection of maps in book form
  122. Atriplex
    orach; saltbush
  123. Atropa
    belladonna
  124. atrophy
    a decrease in size of an organ caused by disease or disuse
  125. Aucuba
    hardy evergreen dioecious shrubs and small trees from Japan
  126. auricula
    a pouch projecting from the top front of each atrium of the heart
  127. Avena
    oats
  128. awn
    slender bristlelike appendage found on the bracts of grasses
  129. axial
    situated on or along or in the direction of an axis
  130. axil
    the upper angle between an axis and an offshoot such as a branch or leafstalk
  131. axile
    relating to or attached to the axis
  132. axile placentation
    ovules are borne at or around the center of a compound ovary on an axis formed from joined septa
  133. axillary
    of or relating to the axil
  134. axis
    a straight line through a body or figure
  135. azalea
    any of numerous ornamental shrubs grown for their showy flowers of various colors
  136. azedarach
    tree of northern India and China having purple blossoms and small inedible yellow fruits; naturalized in the southern United States as a shade tree
  137. backup system
    a computer system for making backups
  138. balsam
    a scented sap used in medicines and perfumes
  139. Bambusa
    tall tender clumping bamboos
  140. banksia
    any shrub or tree of the genus Banksia having alternate leathery leaves apetalous yellow flowers often in showy heads and conelike fruit with winged seeds
  141. Barbarea
    biennial or perennial herbs of north temperate regions: winter cress
  142. Barbarea vulgaris
    noxious cress with yellow flowers
  143. basal
    serving as or forming a bottom layer
  144. basilar
    of or relating to or located at the base
  145. Bauhinia
    mountain ebony, orchid tree
  146. begonia
    any of numerous plants of the genus Begonia grown for their attractive glossy asymmetrical leaves and colorful flowers in usually terminal cymes or racemes
  147. belladonna
    perennial Eurasian herb with reddish bell-shaped flowers and shining black berries; extensively grown in United States; roots and leaves yield atropine
  148. Bellis
    daisy
  149. Bellis perennis
    low-growing Eurasian plant with yellow central disc flowers and pinkish-white outer ray flowers
  150. Berberis
    large genus of shrubs of temperate zones of New and Old Worlds
  151. Berberis vulgaris
    upright deciduous European shrub widely naturalized in United States having clusters of juicy berries
  152. Beta vulgaris
    biennial Eurasian plant usually having a swollen edible root
  153. Betula
    a genus of trees of the family Betulaceae (such as birches)
  154. Betula populifolia
    medium-sized birch of eastern North America having white or pale grey bark and valueless wood; occurs often as a second-growth forest tree
  155. bicolor
    having two colors
  156. Bidens
    bur marigolds
  157. bifid
    divided into two lobes
  158. bigarade
    any of various common orange trees yielding sour or bitter fruit; used as grafting stock
  159. Bignonia
    one species: cross vine
  160. Bignonia capreolata
    woody flowering vine of southern United States
  161. bilobed
    having two lobes
  162. binary
    of or pertaining to a number system having 2 as its base
  163. bipartite
    involving two sections or elements
  164. bladder
    a distensible membranous sac
  165. bocconia
    herb of China and Japan widely cultivated for its plumelike panicles of creamy white flowers
  166. borage
    hairy blue-flowered European annual herb long used in herbal medicine and eaten raw as salad greens or cooked like spinach
  167. bot
    a mechanism that can move independently of external control
  168. botanical
    of or relating to plants
  169. botany
    the branch of biology that studies plants
  170. bougainvillea
    any of several South American ornamental woody vines of the genus Bougainvillea having brilliant red or purple flower bracts; widely grown in warm regions
  171. Bowiea
    small genus of tropical African perennial bulbous herbs with deciduous twining stems; sometimes placed in family Hyacinthaceae
  172. Bowiea volubilis
    much-branched leafless twining South African herb cultivated as an ornamental for its bright green stems growing from large aboveground bulbs
  173. bract
    a modified leaf or leaflike part just below and protecting an inflorescence
  174. bracteate
    having bracts
  175. branchlet
    a small branch or division of a branch
  176. Brassica
    mustards: cabbages; cauliflowers; turnips; etc.
  177. Brassica napus
    Eurasian plant cultivated for its seed and as a forage crop
  178. Brassica oleracea
    wild original of cultivated cabbages
  179. broccoli
    plant with dense clusters of tight green flower buds
  180. Bromelia
    the type genus of the family Bromeliaceae which includes tropical American plants with deeply cleft calyx
  181. Bromus
    a genus of grasses of the family Gramineae
  182. Bryum
    type genus of the Bryaceae: mosses distinguished by mostly erect and tufted gametophytes and symmetrical short-necked capsules
  183. bulbil
    small bulb or bulb-shaped growth arising from the leaf axil or in the place of flowers
  184. bullate
    of leaves; appearing puckered as if blistered
  185. bundle
    a collection of things wrapped or boxed together
  186. burr
    seed vessel having hooks or prickles
  187. bursa
    a small fluid-filled sac located between movable parts of the body especially at joints
  188. Cabomba
    alternatively, a member of the family Nymphaeaceae
  189. Cakile
    small genus of succulent annual herbs found on sandy shores of North America and Europe
  190. Cakile maritima
    salt-tolerant seashore annual grown for its fragrant rose or violet flowers and fleshy grey-green foliage
  191. calanthe
    any of various showy orchids of the genus Calanthe having white or yellow or rose-colored flowers and broad leaves folded lengthwise
  192. calceolaria
    any garden plant of the genus Calceolaria having flowers with large inflated slipper-shaped lower lip
  193. calendula
    any of numerous chiefly annual herbs of the genus Calendula widely cultivated for their yellow or orange flowers; often used for medicinal and culinary purposes
  194. Calendula officinalis
    the common European annual marigold
  195. Calla
    water arum
  196. Calla palustris
    plant of wetlands and bogs of temperate regions having small greenish flowers partly enclosed in a white spathe and red berries
  197. Callitriche
    water starworts
  198. callosity
    an area of skin that is thick or hard from continual pressure or friction (as the sole of the foot)
  199. Calluna
    one species
  200. Calluna vulgaris
    common Old World heath represented by many varieties
  201. Caltha
    a genus of Caltha
  202. Caltha palustris
    swamp plant of Europe and North America having bright yellow flowers resembling buttercups
  203. calycine
    of or relating to or resembling a calyx
  204. Calycophyllum
    medium to large tropical American trees having shiny reddish-brown shredding bark
  205. calyptra
    the hood or cap covering the calyx of certain plants: e.g., the California poppy
  206. Calystegia
    climbing or scrambling herbs: bindweed
  207. Calystegia sepium
    common Eurasian and American wild climber with pink flowers
  208. calyx
    (botany) the whorl of sepals of a flower collectively forming the outer floral envelope or layer of the perianth enclosing and supporting the developing bud; usually green
  209. calyx tube
    the cuplike or ringlike or tubular structure of a flower which bears the sepals and stamens and calyx (as in Rosaceae)
  210. camellia
    any of several shrubs or small evergreen trees having solitary white or pink or reddish flowers
  211. Camellia japonica
    greenhouse shrub with glossy green leaves and showy fragrant rose-like flowers; cultivated in many varieties
  212. campanula
    any of various plants of the genus Campanula having blue or white bell-shaped flowers
  213. Campanula medium
    European biennial widely cultivated for its blue or violet or white flowers
  214. Campanula persicifolia
    perennial European bellflower with racemose white or blue flowers
  215. Campanula pyramidalis
    bellflower of southeastern Europe
  216. Campanula rapunculoides
    erect European herb with creeping rootstocks and nodding spikelike racemes of blue to violet flowers
  217. Campanula rotundifolia
    perennial of northern hemisphere with slender stems and bell-shaped blue flowers
  218. candida
    any of the yeastlike imperfect fungi of the genus Candida
  219. canna
    any plant of the genus Canna having large sheathing leaves and clusters of large showy flowers
  220. cannabis
    any plant of the genus Cannabis
  221. Cannabis sativa
    a strong-smelling plant from whose dried leaves a number of euphoriant and hallucinogenic drugs are prepared
  222. capitate
    being abruptly enlarged and globose at the tip
  223. capitulum
    a dense cluster of flowers or foliage
  224. Capsella
    shepherd's purse
  225. Capsella bursa-pastoris
    white-flowered annual European herb bearing triangular notched pods; nearly cosmopolitan as an introduced weed
  226. capsular
    resembling a capsule
  227. capsule
    a small container
  228. Cardamine
    bittercress, bitter cress
  229. Cardamine pratensis
    a bitter cress of Europe and America
  230. Carduus
    genus of annual or perennial Old World prickly thistles
  231. Carduus crispus
    European biennial introduced in North America having flower heads in crowded clusters at ends of branches
  232. Carex
    large genus of plants found in damp woodlands and bogs and ditches or at water margins: sedges
  233. Carica
    type genus of the Caricaceae
  234. carina
    any of various keel-shaped structures or ridges such as that on the breastbone of a bird or that formed by the fused petals of a pea blossom
  235. Carlina
    genus of Mediterranean thistles
  236. Carlina vulgaris
    Eurasian thistle growing in sand dunes and dry chalky soils
  237. carnation
    Eurasian plant with pink to purple-red spice-scented usually double flowers; widely cultivated in many varieties and many colors
  238. carpel
    a simple pistil or one element of a compound pistil
  239. Carpinus
    mostly deciduous monoecious trees or shrubs: hornbeams
  240. carpophore
    a slender stalk that furnishes an axis for a carpel
  241. Carthamus
    safflower
  242. Carum
    caraway
  243. Cassia
    some genus Cassia species often classified as members of the genus Senna or genus Chamaecrista
  244. Castanea
    chestnuts; chinkapins
  245. casuarina
    any of various trees and shrubs of the genus Casuarina having jointed stems and whorls of scalelike leaves; some yield heavy hardwood
  246. catalpa
    tree of the genus Catalpa with large leaves and white flowers followed by long slender pods
  247. Catasetum
    genus of tropical American orchids having showy male and female flowers usually on separate inflorescences
  248. catkin
    a cylindrical spikelike inflorescence
  249. cattleya
    any orchid of the genus Cattleya characterized by a three-lobed lip enclosing the column; among the most popular and most extravagantly beautiful orchids known
  250. cauliflower
    a plant having an edible head of crowded white buds
  251. Caulophyllum
    blue cohosh
  252. Cedrus
    true cedars
  253. Celastrus
    genus of woody vines and erect shrubs (type genus of the Celastraceae) that is native chiefly to Asia and Australia: includes bittersweet
  254. celery
    widely cultivated herb with aromatic leaf stalks that are eaten raw or cooked
  255. cell
    the basic structural and functional unit of all organisms
  256. cellular
    relating to cells
  257. Celosia
    annual or perennial herbs or vines of tropical and subtropical America and Asia and Africa
  258. Centaurea
    knapweed; star thistle
  259. Centaurea moschata
    Asian plant widely grown for its sweetly fragrant pink flowers; sometimes placed in genus Centaurea
  260. Centranthus
    genus of southern European herbs and subshrubs
  261. Centranthus ruber
    European herb with small fragrant crimson or white spurred flowers
  262. centrifugal
    tending to move away from the middle
  263. centripetal
    tending to move toward an area in the middle
  264. Cephalotus
    one species: Australian pitcher plant
  265. Cephalotus follicularis
    a carnivorous perennial herb having a green pitcher and hinged lid both with red edges; western Australia
  266. Cerastium
    mouse-eared chickweed
  267. Ceratonia
    carobs
  268. Ceratonia siliqua
    evergreen Mediterranean tree with edible pods
  269. Cercis
    deciduous shrubs and trees of eastern Asia, southern Europe and the United States
  270. Cheiranthus
    Old World perennial plants grown for their showy flowers
  271. Cheiranthus cheiri
    perennial of southern Europe having clusters of fragrant flowers of all colors especially yellow and orange; often naturalized on old walls or cliffs; sometimes placed in genus Erysimum
  272. Chelidonium
    one species: greater celandine
  273. Chelidonium majus
    perennial herb with branched woody stock and bright yellow flowers
  274. Chelone
    herbaceous perennials: shellflower
  275. Chenopodium
    goosefoot; pigweed
  276. Chenopodium glaucum
    annual European plant with spikes of greenish flowers and leaves that are white and hairy on the underside; common as a weed in North America
  277. Chenopodium murale
    European annual with coarsely dentate leaves
  278. Chenopodium vulvaria
    European goosefoot with strong-scented foliage
  279. cherry
    any of numerous trees and shrubs producing a small fleshy round fruit with a single hard stone; many also produce a valuable hardwood
  280. chestnut
    a type of hardwood tree that yields edible nuts
  281. chicory
    perennial Old World herb having rayed flower heads with blue florets cultivated for its root and its heads of crisp edible leaves used in salads
  282. Chinese primrose
    cultivated Asiatic primrose
  283. chive
    perennial having hollow cylindrical leaves used for seasoning
  284. chives
    perennial having hollow cylindrical leaves used for seasoning
  285. chlorophyll
    any of green pigments found in photosynthetic organisms
  286. chrysanthemum
    any of numerous perennial Old World herbs having showy brightly colored flower heads of the genera Chrysanthemum, Argyranthemum, Dendranthema, Tanacetum; widely cultivated
  287. Chrysosplenium
    genus of widely distributed semiaquatic herbs with minute greenish-yellow apetalous flowers
  288. Cichorium
    chicory
  289. Cicuta
    small genus of perennial herbs having deadly poisonous tuberous roots: water hemlock
  290. cilium
    a hairlike projection from the surface of a cell
  291. cineraria
    herb of Canary Islands widely cultivated for its blue or purple or red or variegated daisylike flowers
  292. circinate
    shaped like a ring
  293. Cirsium
    plume thistles
  294. Cirsium arvense
    European thistle naturalized in United States and Canada where it is a pernicious weed
  295. Cirsium lanceolatum
    European thistle with rather large heads and prickly leaves
  296. Cistus
    small to medium-sized evergreen shrubs of southern Europe and North Africa
  297. citrus
    a tropical tree cultivated for its juicy edible fruits
  298. Citrus aurantium
    any of various common orange trees yielding sour or bitter fruit; used as grafting stock
  299. cladode
    a flattened stem resembling and functioning as a leaf
  300. cleavage
    the act of splitting
  301. clematis
    any of various ornamental climbing plants of the genus Clematis usually having showy flowers
  302. Cleome
    tropical and subtropical annual or perennial herbs or low shrubs
  303. Clitoria
    genus of tropical shrubs or vines having pinnate leaves and large axillary flowers
  304. clusia
    an aromatic tree of the genus Clusia having large white or yellow or pink flowers
  305. Clusia rosea
    a common tropical American clusia having solitary white or rose flowers
  306. Cnicus
    one species: blessed thistle
  307. Cochlearia
    a genus of the family Cruciferae
  308. cockscomb
    the fleshy red crest on the head of the domestic fowl and other gallinaceous birds
  309. Cocos
    coconut palms
  310. Cocos nucifera
    tall palm tree bearing coconuts as fruits
  311. coherent
    marked by an orderly and consistent relation of parts
  312. cohesion
    the state of sticking together
  313. Cola acuminata
    tree bearing large brown nuts containing e.g. caffeine
  314. Colchicum
    chiefly fall-blooming perennial cormous herbs
  315. Colchicum autumnale
    bulbous autumn-flowering herb with white, purple or lavender-and-white flowers; native to western and central Europe
  316. coleus
    any of various Old World tropical plants of the genus Coleus having multicolored decorative leaves and spikes of blue flowers
  317. coloration
    appearance with regard to color
  318. columbine
    a plant of the genus Aquilegia having irregular showy spurred flowers; north temperate regions especially mountains
  319. columella
    a small column that is a part of a plant or animal
  320. columnea
    tropical plant having thick hairy somewhat toothed leaves and solitary or clustered yellow to scarlet flowers; many cultivated for their flowers and ornamental foliage
  321. Colutea
    small genus of Eurasian shrubs with yellow flowers and bladdery pods
  322. common dandelion
    Eurasian plant widely naturalized as a weed in North America
  323. common foxglove
    tall leafy European biennial or perennial having spectacular clusters of large tubular pink-purple flowers; leaves yield drug digitalis and are poisonous to livestock
  324. common ivy
    Old World vine with lobed evergreen leaves and black berrylike fruits
  325. common marigold
    the common European annual marigold
  326. common pea
    plant producing peas usually eaten fresh rather than dried
  327. Comoros
    a country on the Comoro Islands
  328. comparative anatomy
    the study of anatomical features of animals of different species
  329. component
    one of the individual parts making up a larger entity
  330. composite
    consisting of separate interconnected parts
  331. compound
    a whole formed by a union of two or more elements or parts
  332. compound leaf
    a leaf composed of a number of leaflets on a common stalk
  333. computer code
    (computer science) the symbolic arrangement of data or instructions in a computer program or the set of such instructions
  334. computer virus
    a software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computer
  335. concave
    curving inward
  336. concretion
    the union of diverse things into one body or form or group
  337. configuration
    an arrangement of parts or elements
  338. confluence
    a place where things merge or flow together
  339. conformation
    acting according to certain accepted standards
  340. congenital
    present at birth but not necessarily hereditary
  341. conical projection
    a map projection of the globe onto a cone with its point over one of the earth's poles
  342. conifer
    a type of tree or shrub bearing cones
  343. Conium
    small genus of highly toxic biennials: hemlock
  344. Conium maculatum
    large branching biennial herb native to Eurasia and Africa and adventive in North America having large fernlike leaves and white flowers; usually found in damp habitats; all parts extremely poisonous
  345. conjugate
    undergo the act of becoming a single unit
  346. connate
    related in nature
  347. connective
    connecting or tending to connect
  348. Consolida
    plants having flowers resembling the larkspur's but differing from larkspur's in the arrangement of petals; sometimes included in genus Delphinium
  349. Convallaria
    sometimes placed in family Convallariaceae: lily of the valley
  350. Convallaria majalis
    low-growing perennial plant having usually two large oblong lanceolate leaves and a raceme of small fragrant nodding bell-shaped flowers followed by scarlet berries
  351. convergent
    tending to come together from different directions
  352. convolvulus
    any of numerous plants of the genus Convolvulus
  353. Convolvulus sepium
    common Eurasian and American wild climber with pink flowers
  354. Conyza
    common American weed or wildflower
  355. Corallorhiza
    genus of leafless root-parasitic orchids having small purplish or yellowish racemose flowers with lobed lips; widely distributed in temperate regions
  356. Corchorus
    widely distributed genus of tropical herbs or subshrubs
  357. coreopsis
    any of numerous plants of the genus Coreopsis having a profusion of showy usually yellow daisylike flowers over long periods; North and South America
  358. corm
    solid swollen underground bulb-shaped stem or stem base and serving as a reproductive structure
  359. cornu
    (anatomy) any structure that resembles a horn in shape
  360. Cornus
    a rosid dicot genus of the family Cornaceae including: dogwood; cornel: perennial chiefly deciduous shrubs or small trees of temperate regions of northern hemisphere
  361. Cornus mas
    deciduous European shrub or small tree having bright red fruit
  362. Cornus sanguinea
    European deciduous shrub turning red in autumn having dull white flowers
  363. corolla
    (botany) the whorl of petals of a flower that collectively form an inner floral envelope or layer of the perianth
  364. corona
    one or more circles of light seen around a luminous object
  365. coronal
    a circular band of flowers or other foliage
  366. coronilla
    any of various plants of the genus Coronilla having purple or pink or yellow flowers in long axillary heads or umbels
  367. Corydalis
    type genus of the Corydalidae
  368. Corydalis solida
    herb of northern Europe and Asia having erect racemes of red flowers
  369. Corylus
    deciduous monoecious nut-bearing shrubs of small trees: hazel; sometimes placed in the subfamily or family Corylaceae
  370. Corylus avellana
    small nut-bearing tree much grown in Europe
  371. corymb
    flat-topped or convex inflorescence in which the individual flower stalks grow upward from various points on the main stem to approximately the same height; outer flowers open first
  372. Cotinus
    smoke trees
  373. cotoneaster
    any shrub of the genus Cotoneaster: erect or creeping shrubs having richly colored autumn foliage and many small white to pinkish flowers followed by tiny red or black fruits
  374. Cotula
    cosmopolitan herbs especially southern hemisphere
  375. cotyledon
    embryonic leaf in seed-bearing plants
  376. cowslip
    early spring flower common in British isles having fragrant yellow or sometimes purple flowers
  377. Crassula
    type genus of Crassulaceae
  378. Crepis
    hawk's-beard; cosmopolitan in northern hemisphere
  379. crevice
    a long narrow opening
  380. crocus
    any of numerous low-growing plants of the genus Crocus having slender grasslike leaves and white or yellow or purple flowers; native chiefly to the Mediterranean region but widely cultivated
  381. cross section
    a section created by a plane cutting a solid perpendicular to its longest axis
  382. crucifer
    any of various plants of the family Cruciferae
  383. crus
    the leg from the knee to foot
  384. cryptogam
    formerly recognized taxonomic group including all flowerless and seedless plants that reproduce by means of spores: ferns, mosses, algae, fungi
  385. Cryptomeria
    Japanese cedar; sugi
  386. Cryptomeria japonica
    tall evergreen of Japan and China yielding valuable soft wood
  387. cucumber
    a melon vine of the genus Cucumis
  388. Cucumis
    cucumbers; muskmelons
  389. cucurbit
    any plant of the family Cucurbitaceae
  390. Cucurbita
    type genus of the Cucurbitaceae
  391. culm
    stem of plants of the Gramineae
  392. cultivated carrot
    perennial plant widely cultivated as an annual in many varieties for its long conical orange edible roots; temperate and tropical regions
  393. cultivated plant
    plants that are grown for their produce
  394. cupping
    a treatment in which evacuated cups are applied to the skin to draw blood through the surface
  395. Cupressus
    type genus of Cupressaceae
  396. cupule
    cup-shaped structure of hardened bracts at the base of an acorn
  397. cyclamen
    Mediterranean plant widely cultivated as a houseplant for its showy dark green leaves splotched with silver and nodding white or pink to reddish flowers with reflexed petals
  398. Cydonia
    quince
  399. cyme
    more or less flat-topped cluster of flowers in which the central or terminal flower opens first
  400. cymose
    having a usually flat-topped flower cluster in which the main and branch stems each end in a flower that opens before those below it or to its side
  401. Cypripedium
    genus of chiefly American perennial leafy-stemmed orchids: lady's slippers; sometimes includes species of genus Paphiopedilum
  402. Cytisus
    large genus of stiff or spiny evergreen or deciduous Old World shrubs: broom
  403. Cytisus albus
    low European broom having trifoliate leaves and yellowish-white flowers
  404. Dactylis
    a monocotyledonous grass of the family Gramineae
  405. Dactylis glomerata
    widely grown stout Old World hay and pasture grass
  406. daffodil
    any of numerous varieties of Narcissus plants having showy often yellow flowers with a trumpet-shaped central crown
  407. dahlia
    any of several plants of or developed from the species Dahlia pinnata having tuberous roots and showy rayed variously colored flower heads; native to the mountains of Mexico and Central America and Colombia
  408. dandelion
    any of several herbs of the genus Taraxacum having long tap roots and deeply notched leaves and bright yellow flowers followed by fluffy seed balls
  409. Darwin
    English natural scientist who formulated a theory of evolution by natural selection (1809-1882)
  410. date palm
    tall tropical feather palm tree native to Syria bearing sweet edible fruit
  411. Datura
    thorn apple
  412. Datura arborea
    a South American plant that is cultivated for its large fragrant trumpet-shaped flowers
  413. Daucus
    carrot
  414. deciduous
    shedding foliage at the end of the growing season
  415. decussate
    crossed or intersected in the form of an X
  416. decussation
    an intersection or crossing of two tracts in the form of the letter X
  417. degeneration
    the process of declining from a higher to a lower level
  418. delphinium
    any plant of the genus Delphinium having palmately divided leaves and showy spikes of variously colored spurred flowers; some contain extremely poisonous substances
  419. dendrobium
    a plant of the genus Dendrobium having stems like cane and usually showy racemose flowers
  420. dentate
    having toothlike projections in the margin
  421. Desmodium
    beggarweed; tick trefoil
  422. deutzia
    any of various shrubs of the genus Deutzia having usually toothed opposite leaves and shredding bark and white or pink flowers in loose terminal clusters
  423. dialysis
    separation of mixed substances using a special filter
  424. Dianthus
    carnations and pinks
  425. Dianthus barbatus
    Eurasian pink widely cultivated for its flat-topped dense clusters of varicolored flowers
  426. diaphragm
    a muscular partition in the chest used in respiration
  427. diaphysis
    the main (mid) section of a long bone
  428. diclinous
    having pistils and stamens in separate flowers
  429. dicot
    flowering plant with two cotyledons
  430. dicotyledon
    flowering plant with two cotyledons
  431. dicotyledonous
    (of a flowering plant) having two cotyledons in the seed
  432. Dictamnus
    a dicotyledonous genus of the family Rutaceae
  433. digitalis
    any of several plants of the genus Digitalis
  434. Digitalis lutea
    European yellow-flowered foxglove
  435. Digitalis purpurea
    tall leafy European biennial or perennial having spectacular clusters of large tubular pink-purple flowers; leaves yield drug digitalis and are poisonous to livestock
  436. digitate
    resembling a finger
  437. dilatation
    the act of expanding an aperture
  438. dilate
    become wider
  439. dimorphic
    occurring or existing in two different forms
  440. dimorphism
    (chemistry) the property of certain substances that enables them to exist in two distinct crystalline forms
  441. dioecious
    having male and female reproductive organs in separate plants or animals
  442. Diplotaxis
    wall rocket
  443. Diplotaxis muralis
    yellow-flowered European plant that grows on old walls and in waste places; an adventive weed in North America
  444. Diplotaxis tenuifolia
    yellow-flowered European plant that grows on old walls and in waste places; an adventive weed in North America
  445. Dipsacus
    type genus of the Dipsacaceae: teasel
  446. Dipsacus fullonum
    teasel with lilac flowers native to Old World but naturalized in North America; dried flower heads used to raise a nap on woolen cloth
  447. Dipsacus sylvestris
    European teasel with white to pink flowers
  448. Dirca
    deciduous shrub of North America: leatherwood
  449. dislocation
    a disruption or lack of continuity
  450. displacement
    the act of moving something from its natural environment
  451. dissociation
    the act of removing from association
  452. distal
    situated farthest from point of attachment or origin, as of a limb or bone
  453. divergence
    moving away in different direction from a common point
  454. divergent
    tending to move apart in different directions
  455. dodo
    extinct heavy flightless bird of Mauritius related to pigeons
  456. draba
    any of numerous low-growing cushion-forming plants of the genus Draba having rosette-forming leaves and terminal racemes of small flowers with scapose or leafy stems; fruit is a dehiscent oblong or linear silique
  457. Dracocephalum
    genus of American herbs and dwarf shrubs of the mind family: dragonheads
  458. dracontium
    any plant of the genus Dracontium
  459. Drosera
    the type genus of Droseraceae including many low bog-inhabiting insectivorous plants
  460. drupe
    fleshy indehiscent fruit with a single seed: e.g. almond
  461. duplication
    the act of making a copy of something
  462. echinocactus
    any cactus of the genus Echinocactus
  463. Echium
    a genus of bristly herbs and shrubs of the family Boraginaceae
  464. Echium vulgare
    a coarse prickly European weed with spikes of blue flowers
  465. electronic
    relating to or operating by a controlled current
  466. element
    a substance that cannot be separated into simpler substances
  467. elongate
    lengthen
  468. elongation
    the act of lengthening something
  469. email
    (computer science) a system of world-wide electronic communication in which a computer user can compose a message at one terminal that can be regenerated at the recipient's terminal when the recipient logs in
  470. embryo
    an animal organism in the early stages of growth
  471. Empetrum
    crowberries
  472. enation
    a natural projection or outgrowth from a plant body or organ
  473. endocarp
    the hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed
  474. endogen
    a monocotyledonous flowering plant
  475. entire leaf
    a leaf having a smooth margin without notches or indentations
  476. envelope
    a flat container for a letter or thin package
  477. epacris
    any heathlike evergreen shrub of the genus Epacris grown for their showy and crowded spikes of small bell-shaped or tubular flowers
  478. Epacris impressa
    spindly upright shrub of southern Australia and Tasmania having white to rose or purple-red flowers
  479. epicalyx
    a group of bracts simulating a calyx as in a carnation or hibiscus
  480. Epidendrum
    large and variable genus of terrestrial or epiphytic or lithophytic orchids of tropical and subtropical Americas; some native to United States
  481. Epilobium
    large widely distributed genus of herbs and subshrubs of especially western North America and Arctic areas
  482. Epilobium hirsutum
    plant of Europe and Asia having purplish-red flowers and hairy stems and leaves; introduced into North America
  483. Epimedium
    herbaceous perennials of Mediterranean to India and eastern Asia
  484. Epipactis
    genus of hardy orchids with leafy-bracted racemes of greenish or purplish irregular flowers
  485. epiphyllum
    any cactus of the genus Epiphyllum having flattened jointed irregularly branching stems and showy tubular flowers
  486. episcia
    any plant of the genus Episcia
  487. Equisetum
    horsetails; coextensive with the family Equisetaceae
  488. Eranthis
    winter aconite
  489. Eranthis hyemalis
    small Old World perennial herb grown for its bright yellow flowers which appear in early spring often before snow is gone
  490. erica
    any plant of the genus Erica
  491. Eriobotrya
    Asiatic evergreen fruit trees
  492. Eriobotrya japonica
    evergreen tree of warm regions having fuzzy yellow olive-sized fruit with a large free stone; native to China and Japan
  493. Erodium
    geraniums of Europe and South America and Australia especially mountainous regions
  494. Eryngium
    large genus of decorative plants with thistlelike flower heads; cosmopolitan in distribution
  495. Erysimum
    large genus of annual or perennial herbs some grown for their flowers and some for their attractive evergreen leaves; Old World and North America
  496. etiolated
    developed without chlorophyll by being deprived of light
  497. etiolation
    the act of weakening by stunting the growth or development of something
  498. Euonymus
    widely distributed chiefly evergreen shrubs or small trees or vines
  499. Euphorbia
    type genus of the Euphorbiaceae: very large genus of diverse plants all having milky juice
  500. Euphorbia esula
    tall European perennial naturalized and troublesome as a weed in eastern North America
  501. Euphorbia helioscopia
    not unattractive European weed whose flowers turn toward the sun
  502. evolution
    sequence of events involved in the development of a species
  503. excrescence
    something that bulges out or projects from its surroundings
  504. exogen
    flowering plant with two cotyledons
  505. experimentally
    in an experimental fashion
  506. Fabiana
    genus of South and Central American heathlike evergreen shrubs
  507. Fagus
    beeches
  508. Fagus sylvatica
    large European beech with minutely-toothed leaves
  509. fascicle
    an installment of a printed work
  510. fastigiate
    having clusters of erect branches
  511. fertilization
    making productive by adding nutrients
  512. Festuca
    a genus of tufted perennial grasses of the family Gramineae
  513. fibril
    a very slender natural or synthetic fiber
  514. Ficus
    large genus of tropical trees or shrubs or climbers including fig trees
  515. filago
    any plant of the genus Filago having capitate clusters of small woolly flower heads
  516. Filago germanica
    (literally an undutiful herb) a variety of cotton rose
  517. filament
    a thin wire heated by the passage of an electric current
  518. filename
    (computer science) the name given to a computer file in order to distinguish it from other files; may contain an extension that indicates the type of file
  519. fission
    reproduction of a unicellular organism by cell division
  520. fissiparous
    reproducing by fission
  521. floral
    relating to or associated with flowers
  522. floral envelope
    collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils
  523. floret
    a diminutive flower
  524. flower bud
    a bud from which only a flower or flowers develop
  525. flower head
    a shortened compact cluster of flowers so arranged that the whole gives the effect of a single flower as in clover or members of the family Compositae
  526. flower petal
    part of the perianth that is usually brightly colored
  527. flower stalk
    erect leafless flower stalk growing directly from the ground as in a tulip
  528. flowering
    the time and process of budding and unfolding of blossoms
  529. flowering cherry
    any of several shrubs or trees of the genus Prunus cultivated for their showy white or pink single or double blossoms
  530. flowering plant
    plants having seeds in a closed ovary
  531. foliaceous
    of or pertaining to or resembling the leaf of a plant
  532. folium
    a thin layer or stratum of (especially metamorphic) rock
  533. follicle
    any small spherical group of cells containing a cavity
  534. foramen
    a natural opening or perforation through a bone or a membranous structure
  535. format
    the general appearance of a publication
  536. foxglove
    any of several plants of the genus Digitalis
  537. Fragaria
    strawberries
  538. Fragaria vesca
    Europe
  539. fraxinella
    Eurasian perennial herb with white flowers that emit flammable vapor in hot weather
  540. Fraxinus
    ash
  541. Fraxinus excelsior
    tall ash of Europe to the Caucasus having leaves shiny dark-green above and pale downy beneath
  542. free central placentation
    where ovules develop on a central column in a compound ovary lacking septa or with septa at base only
  543. fringed
    surrounded as with a border or fringe
  544. Fritillaria
    fritillary
  545. Fritillaria imperialis
    Eurasian herb with a cluster of leaves and orange-red bell-shaped flowers at the top of the stem
  546. frond
    compound leaf of a fern or palm or cycad
  547. fructification
    the bearing of fruit
  548. fuchsia
    a tropical shrub with showy drooping flowers
  549. Fuchsia coccinea
    erect or climbing shrub of Brazil with deep pink to red flowers
  550. full moon
    the time when the Moon is fully illuminated
  551. fungous
    of or relating to fungi
  552. fungus
    a spore-producing organism that lacks chlorophyll
  553. funicle
    the stalk of a plant ovule or seed
  554. funiculus
    any of several body structure resembling a cord
  555. fusiform
    tapering at each end
  556. fusion
    the act of melding or melting together
  557. gaillardia
    any plant of western America of the genus Gaillardia having hairy leaves and long-stalked flowers in hot vibrant colors from golden yellow and copper to rich burgundy
  558. Galeopsis
    erect annual European herbs
  559. Galium
    annual or perennial herbs: bedstraw; cleavers
  560. Galium aparine
    annual having the stem beset with curved prickles
  561. garden pea
    plant producing peas usually eaten fresh rather than dried
  562. gardenia
    any of various shrubs and small trees of the genus Gardenia having large fragrant white or yellow flowers
  563. Geiger
    German physicist who developed the Geiger counter
  564. gemma
    small asexual reproductive structure in e.g. liverworts and mosses that detaches from the parent and develops into a new individual
  565. Genista
    chiefly deciduous shrubs or small trees of Mediterranean area and western Asia: broom
  566. Genista tinctoria
    small Eurasian shrub having clusters of yellow flowers that yield a dye; common as a weed in Britain and the United States; sometimes grown as an ornamental
  567. genitalia
    external sex organ
  568. Gentiana
    type genus of the Gentianaceae
  569. genus
    taxonomic group containing one or more species
  570. genus Allium
    large genus of perennial and biennial pungent bulbous plants: garlic; leek; onion; chive; sometimes placed in family Alliaceae as the type genus
  571. genus Brassica
    mustards: cabbages; cauliflowers; turnips; etc.
  572. genus Citrus
    orange; lemon; lime; etc.
  573. genus Geranium
    genus of mostly North American geraniums: cranesbills
  574. genus Halenia
    genus of herbs of Eurasia and the Americas: spurred gentians
  575. genus Pelargonium
    geraniums native chiefly to South Africa; widely cultivated
  576. genus Ranunculus
    annual, biennial or perennial herbs: buttercup; crowfoot
  577. geranium
    any of numerous plants of the family Geraniaceae
  578. Geranium pratense
    tall perennial cranesbill with paired violet-blue axillary flowers; native to northern parts of Old World and naturalized in North America
  579. germinal
    containing seeds of later development
  580. germinate
    sprout; produce buds or branches
  581. Geum
    avens
  582. Geum rivale
    erect perennial of north temperate zone having pinnate leaves and a few nodding flowers with a brown-purple calyx and orange and pink petals
  583. glabrous
    having no hair or similar growth; smooth
  584. gladiolus
    any of numerous plants of the genus Gladiolus native chiefly to tropical and South Africa having sword-shaped leaves and one-sided spikes of brightly colored funnel-shaped flowers; widely cultivated
  585. gland
    a small organ that synthesizes and secretes chemicals
  586. glandular
    relating to or affecting or functioning as a gland
  587. Glaucium
    herbs of Europe and North Africa and Asia: horned poppy
  588. gloxinia
    any of several plants of the genera Gloxinia or Sinningia (greenhouse gloxinias) having showy bell-shaped flowers
  589. glume
    small dry membranous bract found in inflorescences of Gramineae and Cyperaceae
  590. Glyceria
    manna grass
  591. Goodenia
    a genus of shrubs and herbs that grow in Australia and New Guinea and Malaysia and southeast Asia
  592. gourd
    any vine of the family Cucurbitaceae that bears fruits with hard rinds
  593. groundsel
    Eurasian weed with heads of small yellow flowers
  594. gymnosperm
    plants of the class Gymnospermae having seeds not enclosed in an ovary
  595. gynoecium
    a female gametoecium
  596. gynophore
    the stalk of a pistil that raises it above the receptacle
  597. Gypsophila
    Mediterranean herbs having small white or pink flowers
  598. Habenaria
    chiefly terrestrial orchids with tubers or fleshy roots often having long slender spurs and petals and lip lobes; includes species formerly placed in genus Gymnadeniopsis
  599. Habenaria bifolia
    south European orchid having fragrant greenish-white flowers
  600. Habenaria chlorantha
    south European orchid with dark green flowers that are larger and less fragrant than Platanthera bifolia; sometimes placed in genus Habenaria
  601. habitat
    the type of environment in which an organism normally lives
  602. Halenia
    genus of herbs of Eurasia and the Americas: spurred gentians
  603. haricot
    a French variety of green bean plant bearing light-colored beans
  604. hastate
    like a spear point, with flaring pointed lobes at the base
  605. haulm
    stems of beans and peas and potatoes and grasses collectively as used for thatching and bedding
  606. Hedera
    Old World woody vines
  607. helianthemum
    any plant of the genus Helianthemum
  608. helianthus
    any plant of the genus Helianthus having large flower heads with dark disk florets and showy yellow rays
  609. Helianthus tuberosus
    tall perennial with hairy stems and leaves
  610. Helix
    type genus of the family Helicidae
  611. Helleborus
    a genus of Helleborus
  612. Helwingia
    deciduous dioecious shrubs native to woodland thickets in low mountains in Japan
  613. Hemerocallis
    east Asian rhizomatous clump-forming perennial herbs having flowers on long leafless stalks; cosmopolitan in cultivation: day lilies; sometimes placed in subfamily Hemerocallidaceae
  614. hepatica
    any of several plants of the genus Hepatica having three-lobed leaves and white or pinkish flowers in early spring; of moist and mossy subalpine woodland areas of north temperate regions
  615. Heracleum
    widely distributed genus of plants with usually thick rootstocks and large umbels of white flowers
  616. herbaceous
    characteristic of a nonwoody herb or plant part
  617. herbaceous plant
    a plant lacking a permanent woody stem
  618. herbarium
    a collection of dried plants that are mounted and classified
  619. hermaphrodite
    one having both male and female sexual characteristics
  620. Hesperis
    biennial or perennial erect herbs having nocturnally fragrant flowers
  621. Hesperis matronalis
    long cultivated herb having flowers whose scent is more pronounced in the evening; naturalized throughout Europe to Siberia and into North America
  622. heterologous
    derived from organisms of a different but related species
  623. hibiscus
    any plant of the genus Hibiscus
  624. Hibiscus mutabilis
    Chinese shrub or small tree having white or pink flowers becoming deep red at night; widely cultivated; naturalized in southeastern United States
  625. Hibiscus syriacus
    Asiatic shrub or small shrubby tree having showy bell-shaped rose or purple or white flowers and usually three-lobed leaves; widely cultivated in temperate North America and Europe
  626. Hieracium
    large genus of perennial hairy herbs of Europe to western Asia to northwestern Africa and North America; few are ornamental; often considered congeneric with Pilosella
  627. hippeastrum
    amaryllis of tropical America often cultivated as a houseplant for its showy white to red flowers
  628. Holcus
    a genus of Old World grasses widely cultivated in America
  629. Holcus mollis
    European perennial grass with soft velvety foliage
  630. homologous
    similar in position, structure, function, or characteristics
  631. honeysuckle
    shrub or vine of the genus Lonicera
  632. Hordeum
    annual to perennial grasses of temperate northern hemisphere and South America: barley
  633. hornbeam
    any of several trees or shrubs of the genus Carpinus
  634. hoya
    any plant of the genus Hoya having fleshy leaves and usually nectariferous flowers
  635. Humulus
    hops: hardy perennial vines of Europe, North America and central and eastern Asia producing a latex sap; in some classifications included in the family Urticaceae
  636. hyacinth
    any of numerous bulbous perennial herbs
  637. Hyacinthus orientalis
    widely grown for its fragrance and its white, pink, blue, or purplish flowers
  638. hybrid
    the offspring of genetically dissimilar parents or stock
  639. hybridisation
    (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids
  640. hybridization
    (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids
  641. hydrangea
    any of various deciduous or evergreen shrubs of the genus Hydrangea
  642. Hydrocharis
    frogbit
  643. Hydrophyllum
    waterleaf
  644. Hyoscyamus
    genus of poisonous herbs: henbane
  645. hypanthium
    the cuplike or ringlike or tubular structure of a flower which bears the sepals and stamens and calyx (as in Rosaceae)
  646. Hypericum
    large almost cosmopolitan genus of evergreen or deciduous shrubs and herbs with often showy yellow flowers; cosmopolitan except tropical lowlands and Arctic or high altitudes and desert regions
  647. Hypericum perforatum
    yellow-flowered perennial common in fields and waste places but a weed in rangelands
  648. hypertext
    machine-readable text that is not sequential but is organized so that related items of information are connected
  649. hypertrophy
    abnormal enlargement of a body part or organ
  650. Hyssopus
    Eurasian genus of perennial herbs or subshrubs
  651. Hyssopus officinalis
    a European mint with aromatic and pungent leaves used in perfumery and as a seasoning in cookery; often cultivated as a remedy for bruises; yields hyssop oil
  652. Iberis
    Old World herbs and subshrubs: candytuft
  653. Ilex
    a large genus of dicotyledonous trees and shrubs of the family Aquifoliaceae that have small flowers and berries (including hollies)
  654. indehiscent
    not opening spontaneously at maturity to release seeds
  655. indeterminate
    not fixed or known in advance
  656. Indian cress
    strong-growing annual climber having large flowers of all shades of orange from orange-red to yellowish orange and seeds that are pickled and used like capers
  657. Indigofera
    genus of tropical herbs and shrubs having odd-pinnate leaves and spurred flowers in long racemes or spikes
  658. indusium
    a membrane enclosing and protecting the developing spores especially that covering the sori of a fern
  659. inelastic
    not able to resume shape after stretching or compression
  660. inflorescence
    the flowering part of a plant or arrangement of flowers on a stalk
  661. Insectivora
    shrews; moles; hedgehogs; tenrecs
  662. instar
    an insect or other arthropod between molts
  663. integument
    an outer protective covering
  664. intercellular
    located between cells
  665. internode
    a segment of a stem between two nodes
  666. intumescence
    swelling up with blood or other fluids (as with congestion)
  667. inula
    any plant of the genus Inula
  668. invalidity
    having a conclusion that does not follow from the premises
  669. inversion
    the act of turning inside out
  670. involucre
    a highly conspicuous bract or bract pair or ring of bracts at the base of an inflorescence
  671. involute
    especially of petals or leaves in bud
  672. Ipomoea
    morning glory
  673. iris
    colored part of the eye that controls the size of the pupil
  674. Iris versicolor
    a common iris of the eastern United States having blue or blue-violet flowers; root formerly used medicinally
  675. iva
    any of various coarse shrubby plants of the genus Iva with small greenish flowers; common in moist areas (as coastal salt marshes) of eastern and central North America
  676. Ixia
    a monocotyledonous genus of the family Iridaceae
  677. jaeger
    rapacious seabird that pursues weaker birds to make them drop their prey
  678. Jambos
    used in some classifications for rose apples
  679. japonica
    greenhouse shrub with glossy green leaves and showy fragrant rose-like flowers; cultivated in many varieties
  680. jasmine
    any of several shrubs and vines of the genus Jasminum chiefly native to Asia
  681. Jasminum
    shrubs and woody climbers mostly of tropical and temperate Old World: jasmine; jessamine
  682. Jasminum nudiflorum
    deciduous rambling shrub widely cultivated for its winter-blooming yellow flowers
  683. Jasminum officinale
    a climbing deciduous shrub with fragrant white or yellow or red flowers used in perfume and to flavor tea
  684. Jatropha
    a mainly tropical genus of American plant belonging to the family Euphorbiaceae
  685. John Tradescant
    English botanist who was one of the first to collect specimens of plants (1570-1638)
  686. Juglans
    type genus of the Juglandaceae
  687. Juglans nigra
    North American walnut tree with hard dark wood and edible nut
  688. Juglans regia
    Eurasian walnut valued for its large edible nut and its hard richly figured wood; widely cultivated
  689. Juncus
    type genus of the Juncaceae
  690. Juncus articulatus
    rush of Australia
  691. Juniperus
    junipers
  692. Juniperus virginiana
    small juniper found east of Rocky Mountains having a conic crown, brown bark that peels in shreds, and small sharp needles
  693. Jussieu
    French botanist who categorized plants into families and developed a system of plant classification (1748-1836)
  694. kail
    a hardy cabbage with coarse curly leaves that do not form a head
  695. kale
    a hardy cabbage with coarse curly leaves
  696. Kochia
    summer cypress
  697. Kochia scoparia
    densely branched Eurasian plant
  698. labiate
    having lips or parts that resemble lips
  699. Laburnum
    flowering shrubs or trees having bright yellow flowers
  700. laciniate
    having edges irregularly and finely slashed
  701. Lactuca
    an herb with milky juice: lettuce; prickly lettuce
  702. Lactuca sativa
    annual or perennial garden plant having succulent leaves used in salads; widely grown
  703. ladanum
    a soft blackish-brown resinous exudate from various rockroses used in perfumes especially as a fixative
  704. Lambertia
    small genus of Australian shrubs
  705. lamina
    a thin plate or layer (especially of bone or mineral)
  706. laminar
    arranged in or consisting of laminae
  707. Lamium
    genus of Old World herbs: dead nettles; henbits
  708. Lamium album
    European dead nettle with white flowers
  709. lancet
    a surgical knife with a pointed double-edged blade
  710. larch
    any of numerous conifers of the genus Larix all having deciduous needlelike leaves
  711. Larix
    larches
  712. lateral
    situated at or extending to the side
  713. Lathyrus
    genus of climbing herbs of Old World and temperate North and South America: vetchling; wild pea
  714. Lathyrus latifolius
    perennial climber of central and southern Europe having purple or pink or white flowers; naturalized in North America
  715. Lathyrus tuberosus
    European herb bearing small tubers used for food and in Scotland to flavor whiskey
  716. Laurus
    small evergreen trees or shrubs with aromatic leaves
  717. Laurus nobilis
    small Mediterranean evergreen tree with small blackish berries and glossy aromatic leaves used for flavoring in cooking; also used by ancient Greeks to crown victors
  718. Lavatera
    widespread genus of herbs or softwood arborescent shrubs cultivated for their showy flowers
  719. leaf blade
    especially a leaf of grass or the broad portion of a leaf as distinct from the petiole
  720. leaf bud
    a bud from which leaves (but not flowers) develop
  721. legume
    an erect or climbing bean or pea plant
  722. leguminous
    relating to or consisting of legumes
  723. leguminous plant
    an erect or climbing bean or pea plant of the family Leguminosae
  724. Leitneria
    one species: corkwood
  725. Leitneria floridana
    very small deciduous dioecious tree or shrub of damp habitats in southeastern United States having extremely light wood
  726. Leontodon
    hawkbit
  727. Lepidium
    cosmopolitan genus of annual and biennial and perennial herbs: cress
  728. Lepidium sativum
    annual herb used as salad green and garnish
  729. lettuce
    any of various plants of the genus Lactuca
  730. Leucanthemum
    comprises plants often included in the genus Chrysanthemum
  731. ligneous
    consisting of or resembling wood
  732. ligule
    any appendage to a plant that is shaped like a strap
  733. Lilium
    type genus of Liliaceae
  734. Lilium auratum
    Japanese lily with golden rays
  735. Lilium candidum
    lily of eastern Mediterranean and the Balkans with broad funnel-shaped white flowers
  736. Lilium lancifolium
    east Asian perennial having large reddish-orange black-spotted flowers with reflexed petals
  737. Linaria
    genus of herbs and subshrubs having showy flowers: spurred snapdragon
  738. Linaria vulgaris
    common European perennial having showy yellow and orange flowers; a naturalized weed in North America
  739. linear
    involving a single dimension
  740. linear leaf
    a long slender leaf
  741. lingua
    a mobile mass of muscular tissue covered with mucous membrane and located in the oral cavity
  742. Linnean
    of or relating to Linnaeus or to the system of taxonomic classification that Linnaeus proposed
  743. Linum
    a herbaceous plant genus of the family Linaceae with small sessile leaves
  744. Liquidambar
    sweet gum
  745. Listera
    genus of terrestrial orchids having usually a single pair of broad shining leaves near the middle of the stem; found in temperate Asia and North America and Europe
  746. Listera ovata
    orchid having a pair of ovate leaves and a long slender raceme of green flowers sometimes tinged red-brown; Europe to central Asia
  747. lobe
    a rounded projection that is part of a larger structure
  748. lobed leaf
    a leaf having deeply indented margins
  749. lobelia
    any plant or flower of the genus Lobelia
  750. lobule
    a small lobe or subdivision of a lobe
  751. loculus
    a small cavity or space within an organ or in a plant or animal
  752. Lolium
    darnel; ryegrass
  753. Lolium perenne
    European perennial grass widely cultivated for pasture and hay and as a lawn grass
  754. Lombardy poplar
    distinguished by its columnar fastigiate shape and erect branches
  755. Lonicera
    woodbine
  756. Lonicera xylosteum
    cultivated Eurasian shrub with twin yellowish-white flowers and scarlet fruit
  757. Lotus corniculatus
    European forage plant having claw-shaped pods introduced in America
  758. Lunaria
    small genus of European herbs: honesty
  759. Lupinus
    herbs or shrubs: lupin
  760. lychnis
    mostly perennial herbs with sticky stems that catch insects
  761. lychnis
    mostly perennial herbs with sticky stems that catch insects
  762. Lychnis coronaria
    an old cottage garden plant of southeastern Europe widely cultivated for its attractive white woolly foliage and showy crimson flowers
  763. Lychnis dioica
    biennial European catchfly having red or pink flowers
  764. Lycium
    deciduous and evergreen shrubs often spiny
  765. Lycopersicum
    tomatoes
  766. Lysimachia
    loosestrife: a cosmopolitan genus found in damp or swampy terrain having usually yellow flowers; inclined to be invasive
  767. Lysimachia vulgaris
    frequently considered a weed; Europe and Asia
  768. Lythrum
    loosestrife
  769. ma
    informal terms for a mother
  770. machine readable
    suitable for feeding directly into a computer
  771. madder
    Eurasian herb having small yellow flowers and red roots formerly an important source of the dye alizarin
  772. magnolia
    any shrub or tree of the genus Magnolia
  773. maize
    corn
  774. mallow
    any of various plants of the family Malvaceae
  775. Malus
    apple trees
  776. Malva
    herbs and subshrubs: mallows
  777. Malva sylvestris
    erect or decumbent Old World perennial with axillary clusters of rosy-purple flowers; introduced in United States
  778. Mangifera
    tropical tree native to Asia bearing fleshy fruit
  779. Mangifera indica
    large evergreen tropical tree cultivated for its large oval fruit
  780. mango
    large evergreen tropical tree cultivated for its large oval fruit
  781. manus
    the (prehensile) extremity of the superior limb
  782. Marchantia
    type genus of Marchantiaceae
  783. marginal placentation
    with ovules borne on the wall along the ventral suture of a simple ovary
  784. marigold
    any of various tropical American plants of the genus Tagetes widely cultivated for their showy yellow or orange flowers
  785. martagon
    lily with small dull purple flowers of northwestern Europe and northwestern Asia
  786. martin
    any of various swallows with squarish or slightly forked tail and long pointed wings; migrate around Martinmas
  787. mascarpone
    soft mild Italian cream cheese
  788. masdevallia
    any of numerous orchids of the genus Masdevallia
  789. Matricaria
    chiefly Old World strong-smelling weedy herbs
  790. Matthiola
    genus of Old World plants grown as ornamentals
  791. Matthiola incana
    European plant with racemes of sweet-scented flowers
  792. maturation
    the act of coming to full development
  793. maxillaria
    any of numerous orchids of the genus Maxillaria often cultivated for their large brilliantly colored solitary flowers
  794. medial
    relating to or situated in or extending toward the middle
  795. median
    relating to or situated in or extending toward the middle
  796. Medicago
    a genus of herbs that resemble clover
  797. Medicago lupulina
    prostrate European herb with small yellow flowers and curved black pods; naturalized in North America
  798. medlar
    small deciduous Eurasian tree cultivated for its fruit that resemble crab apples
  799. Melastoma
    type genus of Melastomataceae
  800. Meleagris
    type genus of the Meleagrididae: wild and domestic turkeys
  801. Melia
    type genus of the Meliaceae: East Indian and Australian deciduous trees with leaves resembling those of the ash
  802. melilotus
    erect annual or biennial plant grown extensively especially for hay and soil improvement
  803. Melilotus officinalis
    biennial yellow-flowered Eurasian plant having aromatic leaves used as carminative or flavoring agent; widely cultivated especially as green manure or cover crop
  804. Mentha
    mint plants
  805. Mentha aquatica
    a European mint that thrives in wet places
  806. Mentzelia
    genus of bristly herbs or subshrubs of western America lacking stinging hairs
  807. Mercurialis
    a genus of slender herbs belonging to the family Euphorbiaceae
  808. Mercurialis annua
    Eurafrican annual naturalized in America as a weed
  809. Mercurialis perennis
    European perennial weedy plant with greenish flowers
  810. Mesembryanthemum
    South African annual or biennial plants having flowers that open only in bright sunlight
  811. Mespilus
    medlars
  812. metamorphosis
    striking change in appearance or character or circumstances
  813. micropyle
    minute opening in the wall of an ovule through which the pollen tube enters
  814. midrib
    the vein in the center of a leaf
  815. mimosa
    a mixed drink containing champagne and orange juice
  816. Mirabilis
    four o'clocks
  817. Mnium
    mosses similar to those of genus Bryum but larger
  818. molle
    small Peruvian evergreen with broad rounded head and slender pendant branches with attractive clusters of greenish flowers followed by clusters of rose-pink fruits
  819. Momordica
    Old World tropical vine
  820. monarda
    any of various aromatic herbs of the genus Monarda
  821. Monarda fistulosa
    perennial herb of North America
  822. monocotyledon
    a monocotyledonous flowering plant
  823. monocotyledonous
    (of a flowering plant) having a single cotyledon in the seed as in grasses and lilies
  824. monstrosity
    a person or animal that is markedly unusual or deformed
  825. morphological
    relating to or concerned with the formation of admissible words in a language
  826. morphology
    the study of the structure of animals and plants
  827. Morus
    type genus of the Moraceae: mulberries
  828. Morus alba
    Asiatic mulberry with white to pale red fruit
  829. mother cell
    cell from which another cell of an organism develops
  830. mulberry
    any of several trees of the genus Morus having edible fruit that resembles the blackberry
  831. multiflora
    vigorously growing rose having clusters of numerous small flowers; used for hedges and as grafting stock
  832. Muscari
    sometimes placed in family Hyacinthaceae
  833. Muscari comosum
    large beautiful Mediterranean species having sterile bluish-violet flowers with fringed corollas forming a tuft above the fertile flowers
  834. Musci
    true mosses: bryophytes having leafy rather than thalloid gametophytes: comprises orders Andreaeales; Bryales; Dicranales; Eubryales; Sphagnales
  835. Myosotis
    forget-me-nots; scorpion grass
  836. Myristica
    type genus of Myristicaceae
  837. Myrtus
    type genus of the Myrtaceae
  838. Myrtus communis
    European shrub with white or rosy flowers followed by black berries
  839. napu
    chevrotain somewhat larger than the kanchil
  840. narcissus
    bulbous plant having erect linear leaves and showy yellow or white flowers either solitary or in clusters
  841. nascent
    being born or beginning
  842. Nasturtium
    aquatic herbs
  843. Nasturtium amphibium
    perennial herb found on streams and riversides throughout Europe except extreme north and Mediterranean; sometimes placed in genus Nasturtium
  844. naturalist
    a biologist knowledgeable about botany and zoology
  845. nectarine
    a variety or mutation of the peach that has a smooth skin
  846. nectary
    a gland that secretes nectar
  847. Nepenthes
    pitcher plants
  848. Nepeta
    catmint
  849. Nerium
    one species: oleander
  850. Nicandra
    sturdy annual of Peru
  851. Nicandra physaloides
    coarse South American herb grown for its blue-and-white flowers followed by a bladderlike fruit enclosing a dry berry
  852. Nicotiana
    American and Asiatic aromatic herbs and shrubs with viscid foliage
  853. Nicotiana rustica
    tobacco plant of South America and Mexico
  854. nidus
    a nest in which spiders or insects deposit their eggs
  855. nigella
    any plant of the genus Nigella
  856. Nigella damascena
    European garden plant having finely cut leaves and white or pale blue flowers
  857. node
    any thickened enlargement
  858. nucleus
    a part of the cell responsible for growth and reproduction
  859. Nuytsia
    one species
  860. oblique
    slanting or inclined in direction or course or position
  861. odontoglossum
    any of numerous and diverse orchids of the genus Odontoglossum having racemes of few to many showy usually large flowers in many colors
  862. Olea
    evergreen trees and shrubs having oily one-seeded fruits
  863. oleander
    an ornamental but poisonous flowering shrub having narrow evergreen leaves and clusters of fragrant white to pink or red flowers: native to East Indies but widely cultivated in warm regions
  864. oncidium
    any orchid of the genus Oncidium: characterized by slender branching sprays of small yellow and brown flowers; often grown as houseplants
  865. Ononis
    genus of European subshrubs or herbs having pink or purple or yellow solitary or clustered flowers: restharrow
  866. Ophrys
    a hardy genus of terrestrial orchids of Europe and northern Africa and western Asia
  867. Ophrys apifera
    European orchid whose flowers resemble bumble bees in shape and color
  868. Ophrys insectifera
    European orchid whose flowers resemble flies
  869. Opuntia
    large genus of cactuses native to America: prickly pears
  870. orbicular
    circular or nearly circular
  871. orchid
    any of numerous plants of the orchid family usually having flowers of unusual shapes and beautiful colors
  872. orchidaceous plant
    any of numerous plants of the orchid family usually having flowers of unusual shapes and beautiful colors
  873. orchis
    any of various deciduous terrestrial orchids having fleshy tubers and flowers in erect terminal racemes
  874. Orchis mascula
    Eurasian orchid with showy pink or purple flowers in a loose spike
  875. organism
    a living thing that can act or function independently
  876. orifice
    an opening, especially one that opens into a bodily cavity
  877. Ornithogalum
    sometimes placed in family Hyacinthaceae
  878. outgrowth
    the gradual beginning or coming forth
  879. ovarian
    of or involving the ovaries
  880. ovary
    (vertebrates) one of usually two organs that produce ova and secrete estrogen and progesterone
  881. ovate
    rounded like an egg
  882. ovulate
    produce and discharge eggs
  883. ovule
    a small or immature ovum
  884. ovum
    the female reproductive cell; the female gamete
  885. oxalis
    any plant or flower of the genus Oxalis
  886. Oxalis cernua
    South African bulbous wood sorrel with showy yellow flowers
  887. palmate
    having three toes connected by a thin fold of skin
  888. palmate leaf
    a leaf resembling an open hand
  889. Panax
    perennial herbs of eastern North America and Asia having aromatic tuberous roots: ginseng
  890. panicle
    compound raceme or branched cluster of flowers
  891. panicled
    having panicles; occurring in panicles
  892. paniculate
    having a panicle
  893. Papaver
    type genus of the Papaveraceae
  894. Papaver orientale
    commonly cultivated Asiatic perennial poppy having stiff heavily haired leaves and bright scarlet or pink to orange flowers
  895. Papaver somniferum
    southwestern Asian herb with greyish leaves and white or reddish flowers; source of opium
  896. papaya
    a tropical American tree that produces a yellow, melon-like fruit
  897. papilla
    a small projection of tissue at the base of a hair or tooth or feather
  898. pappus
    calyx composed of scales or bristles or featherlike hairs in plants of the Compositae such as thistles and dandelions
  899. parasitic
    relating to an animal or plant that lives in or on a host
  900. parenchyma
    animal tissue that constitutes the essential part of an organ as contrasted with e.g. connective tissue and blood vessels
  901. parietal
    of or relating to or associated with the parietal bones in the cranium
  902. parietal placentation
    where ovules develop on the wall or slight outgrowths of the wall forming broken partitions within a compound ovary
  903. Paris quadrifolia
    European herb with yellow-green flowers resembling and closely related to the trilliums; reputed to be poisonous
  904. parnassia
    any of various usually evergreen bog plants of the genus Parnassia having broad smooth basal leaves and a single pale flower resembling a buttercup
  905. Paronychia
    low-growing annual or perennial herbs or woody plants
  906. Parthenium
    small genus of North American herbs and shrubs with terminal panicles of small ray flowers
  907. parthenogenesis
    process in which an unfertilized egg develops
  908. Passiflora
    type genus of the Passifloraceae
  909. Passiflora quadrangularis
    tropical American passionflower yielding the large granadilla fruit
  910. Pastinaca
    a rosid dicot genus of the family Umbelliferae
  911. Pastinaca sativa
    a strong-scented plant cultivated for its edible root
  912. pathological
    relating to the study of diseases
  913. pathology
    the branch of medical science that studies diseases
  914. pavonia
    any of various evergreen plants of the genus Pavonia having white or yellow or purple flowers
  915. pedicel
    a small stalk bearing a single flower of an inflorescence
  916. peduncle
    stalk bearing an inflorescence or solitary flower
  917. Pelargonium
    geraniums native chiefly to South Africa; widely cultivated
  918. Pelargonium peltatum
    a commonly cultivated trailing South American plant with peltate leaves and rosy flowers
  919. peltate
    (of a leaf shape) round, with the stem attached near the center of the lower surface rather than the margin (as a nasturtium leaf for example)
  920. peltate leaf
    a shield-shaped leaf; as a nasturtium leaf
  921. pendulous
    hanging loosely or bending downward
  922. pentamerous
    divided into five parts
  923. Pereskia
    genus of tropical American shrubby trees and woody climbers having slender branches with broad flat leaves and large panicles of flowers
  924. perfoliate
    having the base united around the stem
  925. perianth
    collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils
  926. pericarp
    the ripened and variously modified walls of a plant ovary
  927. Perilla
    small genus of Asiatic herbs
  928. peristome
    (botany) fringe of toothlike appendages surrounding the mouth of a moss capsule
  929. Persian lilac
    tree of northern India and China having purple blossoms and small inedible yellow fruits; naturalized in the southern United States as a shade tree
  930. Petasites
    genus of rhizomatous herbs of north temperate regions: butterbur; sweet coltsfoot
  931. petiole
    the slender stem that supports the blade of a leaf
  932. petiolule
    the stalk of a leaflet
  933. Petroselinum
    parsley
  934. petunia
    any of numerous tropical herbs having fluted funnel-shaped flowers
  935. phaius
    an orchid of the genus Phaius having large plicate leaves and racemes of showy flowers
  936. phalanx
    any closely ranked crowd of people
  937. Phaseolus
    herbs of warm regions including most American beans
  938. philadelphus
    any of various chiefly deciduous ornamental shrubs of the genus Philadelphus having white sweet-scented flowers, single or in clusters; widely grown in temperate regions
  939. Phleum
    grasses native to temperate regions
  940. Phleum pratense
    grass with long cylindrical spikes grown in northern United States and Europe for hay
  941. phlomis
    any of various plants of the genus Phlomis
  942. Phlomis fruticosa
    a spreading subshrub of Mediterranean regions cultivated for dense axillary whorls of purple or yellow flowers
  943. phlox
    a plant with small colorful flowers that grow in clusters
  944. Phoenix dactylifera
    tall tropical feather palm tree native to Syria bearing sweet edible fruit
  945. phyllode
    an expanded petiole taking on the function of a leaf blade
  946. physiologically
    of or relating to physiological processes
  947. physiology
    the science dealing with the functioning of organisms
  948. Phytolacca
    type genus of Phytolaccaceae: pokeweed
  949. Pica
    magpies
  950. Picea
    a genus of temperate and Arctic evergreen trees (see spruce)
  951. Picrasma
    small genus of deciduous trees of tropical America and Asia
  952. pileus
    a fruiting structure resembling an umbrella or a cone that forms the top of a stalked fleshy fungus such as a mushroom
  953. Pilosella
    genus of hairy perennial herbs with horizontal rhizomes and leafy or underground stolons; Eurasia and North Africa; often considered congeneric with Hieracium
  954. Pimpinella
    anise
  955. Pinckneya
    small genus of shrubs or small trees of southeastern United States and northern South America
  956. pineapple
    a tropical American plant bearing a large fleshy edible fruit with a terminal tuft of stiff leaves; widely cultivated in the tropics
  957. pinna
    division of a usually pinnately divided leaf
  958. pinnate
    featherlike; having leaflets on each side of a common axis
  959. pinnate leaf
    a leaf resembling a feather
  960. pinnatifid
    (of a leaf shape) cleft nearly to the midrib in broad divisions not separated into distinct leaflets
  961. pinnule
    division of a usually pinnately divided leaf
  962. Pinus
    type genus of the Pinaceae: large genus of true pines
  963. Pinus pinea
    medium-sized two-needled pine of southern Europe having a spreading crown; widely cultivated for its sweet seeds that resemble almonds
  964. Pinus sylvestris
    medium large two-needled pine of northern Europe and Asia having flaking red-brown bark
  965. Pistacia
    a dicotyledonous genus of trees of the family Anacardiaceae having drupaceous fruit
  966. pistil
    the female, ovule-bearing part of a flower
  967. pistillate
    having gynoecia, or pistils, the ovule-bearing organ of a seed plant
  968. Pisum
    small genus of variable annual Eurasian vines: peas
  969. Pisum sativum
    plant producing peas usually eaten fresh rather than dried
  970. pith
    spongelike central cylinder of the stems of flowering plants
  971. placenta
    the vascular structure in the uterus of most mammals providing oxygen and nutrients for and transferring wastes from the developing fetus
  972. placentation
    the formation of the placenta in the uterus
  973. plant
    a living organism without the power to move
  974. plant life
    (botany) a living organism lacking the power of locomotion
  975. Plantago
    type genus of the family Plantaginaceae
  976. Plantago lanceolata
    an Old World plantain with long narrow ribbed leaves widely established in temperate regions
  977. Plantago major
    common European perennial naturalized worldwide
  978. Plantago media
    widely distributed Old World perennial naturalized in North America having finely hairy leaves and inconspicuous white fragrant flowers
  979. plantain
    a banana tree bearing hanging clusters of edible angular greenish starchy fruits; tropics and subtropics
  980. plasticity
    the property of being physically malleable
  981. Platanus
    genus of large monoecious mostly deciduous trees: London plane; sycamore
  982. plectranthus
    any of various ornamental plants of the genus Plectranthus
  983. plethora
    extreme excess
  984. plica
    a folded part (as in skin or muscle)
  985. plumbago
    used as a lubricant and as a moderator in nuclear reactors
  986. plumule
    down feather of young birds; persists in some adult birds
  987. pod
    the vessel that contains the seeds of a plant
  988. Podalyria
    genus of South African leguminous shrubs often placed in genus Sophora
  989. Podocarpus
    evergreen trees or shrubs
  990. Podophyllum
    perennial rhizomatous herbs
  991. Podophyllum peltatum
    North American herb with poisonous root stock and edible though insipid fruit
  992. pogonia
    any hardy bog orchid of the genus Pogonia: terrestrial orchids having slender rootstocks and erect stems bearing one or a few leaves and a solitary terminal flower
  993. poinsettia
    tropical American plant having poisonous milk and showy tapering usually scarlet petallike leaves surrounding small yellow flowers
  994. polemonium
    any plant of the genus Polemonium
  995. Polianthes
    genus of perennial tuberous herbs having lily-like flowers
  996. Polianthes tuberosa
    a tuberous Mexican herb having grasslike leaves and cultivated for its spikes of highly fragrant lily-like waxy white flowers
  997. pollard
    a tree with limbs cut back to promote a more bushy growth of foliage
  998. pollen
    fine spores produced by flowers to fertilize other flowers
  999. polyanthus
    florists' primroses
  1000. Polygala
    type genus of the Polygalaceae: milkwort; senega; snakeroot
  1001. Polygala vulgaris
    small European perennial with numerous branches having racemes of blue, pink or white flowers; formerly reputed to promote human lactation
  1002. Polygonatum
    sometimes placed in subfamily Convallariaceae
  1003. Polygonum
    diverse genus of herbs or woody subshrubs of north temperate regions
  1004. Polygonum orientale
    annual with broadly ovate leaves and slender drooping spikes of crimson flowers; southeastern Asia and Australia; naturalized in North America
  1005. polymorphic
    having or occurring in several distinct forms
  1006. polymorphism
    (chemistry) the existence of different kinds of crystal of the same chemical compound
  1007. polymorphous
    having or occurring in several distinct forms
  1008. Polypodium
    a genus of ferns belonging to the family Polypodiaceae and having rounded naked sori
  1009. Pomaderris
    a genus of Australasian shrubs and trees
  1010. pome
    a fleshy fruit having seed chambers and an outer fleshy part
  1011. Populus alba
    a poplar that is widely cultivated in the United States
  1012. portulaca
    a plant of the genus Portulaca having pink or red or purple or white ephemeral flowers
  1013. Portulaca grandiflora
    widely cultivated in many varieties for its fleshy moss-like foliage and profusion of brightly colored flowers
  1014. posterior
    located at or near the end of a structure
  1015. Potamogeton
    a large genus of aquatic herbs found in quiet waters in temperate regions; leaves usually float on the water
  1016. Potentilla
    chiefly perennial northern hemisphere herbs and shrubs: cinquefoil
  1017. Poterium
    a genus of thorny herbs or shrubs of the family Rosaceae
  1018. Poterium sanguisorba
    European garden herb with purple-tinged flowers and leaves that are sometimes used for salads
  1019. prickle
    a small sharp-pointed tip on a stem or leaf
  1020. primordial
    having existed from the beginning
  1021. primula
    any of numerous short-stemmed plants of the genus Primula having tufted basal leaves and showy flowers clustered in umbels or heads
  1022. Primula sinensis
    cultivated Asiatic primrose
  1023. Primula veris
    early spring flower common in British isles having fragrant yellow or sometimes purple flowers
  1024. Primula vulgaris
    plant of western and southern Europe widely cultivated for its pale yellow flowers
  1025. prism
    a polyhedron with two congruent and parallel faces
  1026. protrude
    extend out or project in space
  1027. proximal
    situated nearest to point of attachment or origin
  1028. Prunella
    small genus of perennial mostly Eurasian having terminal spikes of small purplish or white flowers
  1029. Prunella vulgaris
    decumbent blue-flowered European perennial thought to possess healing properties; naturalized throughout North America
  1030. Prunus
    a genus of shrubs and trees of the family Rosaceae that is widely distributed in temperate regions
  1031. Prunus domestica
    any of various widely distributed plums grown in the cooler temperate areas
  1032. Prunus glandulosa
    small Chinese shrub with smooth unfurrowed dark red fruit grown especially for its red or pink or white flowers
  1033. Pteris
    large genus of terrestrial ferns of tropics and subtropics
  1034. Pulsatilla
    includes a group of plants that in some classifications are included in the genus Anemone: pasqueflowers
  1035. Pulsatilla patens
    short hairy perennial with early spring blue-violet or lilac flowers; North America and Siberia
  1036. Punica
    coextensive with the family Punicaceae
  1037. pyramidal
    resembling a pyramid
  1038. Pyrethrum
    used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum
  1039. Pyrus
    fruit trees native to the Old World: pears
  1040. Pyrus communis
    Old World tree having sweet gritty-textured juicy fruit
  1041. quaternary
    consisting of or arranged in sets of four
  1042. quince
    small Asian tree with pinkish flowers and pear-shaped fruit
  1043. raceme
    usually elongate cluster of flowers along the main stem in which the flowers at the base open first
  1044. racemose
    having stalked flowers along an elongated stem that continue to open in succession from below as the stem continues to grow
  1045. rachis
    axis of a compound leaf or compound inflorescence
  1046. radiate
    send out rays or waves
  1047. radicle
    a small structure resembling a rootlet
  1048. radish
    a cruciferous plant of the genus Raphanus having a pungent edible root
  1049. ramus
    the posterior part of the mandible that is more or less vertical
  1050. Ranunculus
    annual, biennial or perennial herbs: buttercup; crowfoot
  1051. Ranunculus acris
    perennial European buttercup with yellow spring flowers widely naturalized especially in eastern North America
  1052. Ranunculus aquatilis
    plant of ponds and slow streams having submerged and floating leaves and white flowers; Europe and North America
  1053. Ranunculus bulbosus
    perennial Old World buttercup with golden to sulphur yellow flowers in late spring to early summer; naturalized in North America
  1054. Ranunculus repens
    perennial European herb with long creeping stolons
  1055. Raphanus
    radish
  1056. Raphanus sativus
    Eurasian plant widely cultivated for its edible pungent root usually eaten raw
  1057. raphe
    a ridge that forms a seam between two parts
  1058. red-streaked
    having red stripes
  1059. reflexion
    the phenomenon of a propagating wave (light or sound) being thrown back from a surface
  1060. reniform
    (of a leaf or bean shape) resembling the shape of kidney
  1061. reseda
    any plant of the genus Reseda
  1062. Reseda luteola
    European mignonette cultivated as a source of yellow dye
  1063. Reseda odorata
    Mediterranean woody annual widely cultivated for its dense terminal spikelike clusters greenish or yellowish white flowers having an intense spicy fragrance
  1064. resorption
    the organic process in which the substance of some differentiated structure that has been produced by the body undergoes lysis and assimilation
  1065. restitution
    the act of restoring something to its original state
  1066. reticulate
    resembling or forming a network
  1067. retrograde
    moving or directed or tending in a backward direction
  1068. reversion
    returning to a former state
  1069. Rhamnus
    type genus of the Rhamnaceae: buckthorns
  1070. rhizome
    a horizontal plant stem with shoots above and roots below serving as a reproductive structure
  1071. rhododendron
    any shrub of the genus Rhododendron: evergreen shrubs or small shrubby trees having leathery leaves and showy clusters of campanulate (bell-shaped) flowers
  1072. Rhus
    deciduous or evergreen shrubs and shrubby trees of temperate and subtropical North America, South Africa, eastern Asia and northeastern Australia; usually limited to nonpoisonous sumacs (see genus Toxicodendron)
  1073. Ribes
    a flowering shrub bearing currants or gooseberries
  1074. Ribes nigrum
    widely cultivated current bearing edible black aromatic berries
  1075. Ribes sanguineum
    a flowering shrub
  1076. Ricinus
    a genus of herb having only one known species: castor-oil plant
  1077. Ricinus communis
    large shrub of tropical Africa and Asia having large palmate leaves and spiny capsules containing seeds that are the source of castor oil and ricin; widely naturalized throughout the tropics
  1078. Robert Brown
    Scottish botanist who first observed the movement of small particles in fluids now known a Brownian motion (1773-1858)
  1079. Robinia
    deciduous flowering trees and shrubs
  1080. root crop
    crop grown for its enlarged roots: e.g. beets
  1081. rosacea
    a skin disease of adults (more often women) in which blood vessels of the face enlarge resulting in a flushed appearance
  1082. rosaceous
    of or pertaining to or characteristic of plants of the family Rosaceae
  1083. roseate
    of something having a dusty purplish pink color
  1084. rosette
    an ornament or pattern resembling a rose that is worn as a badge of office or as recognition of having won an honor
  1085. Rubia
    type genus of the Rubiaceae
  1086. Rubia tinctorum
    Eurasian herb having small yellow flowers and red roots formerly an important source of the dye alizarin
  1087. rubricate
    furnish with rubrics or regulate by rubrics
  1088. Rubus
    large genus of brambles bearing berries
  1089. Rubus fruticosus
    the true blackberry of Europe as well as any of numerous varieties having sweet edible black or dark purple berries
  1090. Rudbeckia
    North American perennial herbs with showy cone-shaped flower heads
  1091. rudiment
    the elementary stage of any subject
  1092. rudimentary
    being in the earliest stages of development
  1093. Rumex
    docks: coarse herbs and shrubs mainly native to north temperate regions
  1094. Rumex scutatus
    low perennial with small silvery-green ovate to hastate leaves
  1095. Ruscus
    a genus of European evergreen shrubs
  1096. Ruscus aculeatus
    shrub with stiff flattened stems resembling leaves
  1097. Ruta
    type genus of the Rutaceae; strong-scented Eurasian herbs
  1098. sac
    an enclosed space
  1099. Sagina
    small low-growing annual or perennial herbs of temperate and cool regions
  1100. Sagittaria
    genus of aquatic herbs of temperate and tropical regions having sagittate or hastate leaves and white scapose flowers
  1101. Salix
    a large and widespread genus varying in size from small shrubs to large trees: willows
  1102. Salix alba
    large willow tree of Eurasia and North Africa having greyish canescent leaves and grey bark
  1103. Salix babylonica
    willow with long drooping branches and slender leaves native to China; widely cultivated as an ornamental
  1104. Salix cinerea
    Eurasian shrubby willow with whitish tomentose twigs
  1105. Salix fragilis
    large willow tree with stiff branches that are easily broken
  1106. Salix nigra
    North American shrubby willow having dark bark and linear leaves growing close to streams and lakes
  1107. Salix repens
    small trailing bush of Europe and Asia having straggling branches with silky green leaves of which several varieties are cultivated
  1108. Salix vitellina
    European willow having greyish leaves and yellow-orange twigs used in basketry
  1109. salpiglossis
    any plant of the genus Salpiglossis
  1110. Salsola
    chiefly Old World herbs or shrubs: saltworts
  1111. salvia
    any of various plants of the genus Salvia
  1112. Salvia officinalis
    shrubby plant with aromatic greyish-green leaves used as a cooking herb
  1113. Salvia pratensis
    tall perennial Old World salvia with violet-blue flowers
  1114. Sambucus
    elder; elderberry
  1115. Sambucus nigra
    a common shrub with black fruit or a small tree of Europe and Asia
  1116. Sanguinaria
    one species: bloodroot
  1117. Sanguinaria canadensis
    perennial woodland native of North America having a red root and red sap and bearing a solitary lobed leaf and white flower in early spring and having acrid emetic properties; rootstock used as a stimulant and expectorant
  1118. Saponaria
    mostly perennial Old World herbs
  1119. Saponaria officinalis
    plant of European origin having pink or white flowers and leaves yielding a detergent when bruised
  1120. Sarracenia
    pitcher plants
  1121. sassafras
    yellowwood tree with brittle wood and aromatic leaves and bark; source of sassafras oil; widely distributed in eastern North America
  1122. savant
    a learned person
  1123. savoy
    head of soft crinkly leaves
  1124. Saxifraga
    type genus of the Saxifragaceae
  1125. Saxifraga granulata
    rosette-forming perennial having compact panicles of white flowers; Europe
  1126. scabiosa
    any of various plants of the genus Scabiosa
  1127. Scabiosa arvensis
    perennial having bluish-lilac flowers
  1128. Scabiosa atropurpurea
    Old World annual having fragrant purple to deep crimson flower heads; naturalized in United States
  1129. scabious
    any of various plants of the genus Scabiosa
  1130. scape
    erect leafless flower stalk growing directly from the ground as in a tulip
  1131. scarify
    puncture and scar (the skin), as for purposes or tribal identification or rituals
  1132. Sciadopitys
    type and sole genus of Sciadopityaceae
  1133. Sciadopitys verticillata
    tall evergreen having a symmetrical spreading crown and needles growing in whorls that resemble umbrellas at ends of twigs
  1134. scilla
    an Old World plant of the genus Scilla having narrow basal leaves and pink or blue or white racemose flowers
  1135. Scirpus
    rhizomatous perennial grasslike herbs
  1136. scolopendrium
    a fern thought to resemble a millipede
  1137. scorzonera
    perennial south European herb having narrow entire leaves and solitary yellow flower heads and long black edible roots shaped like carrots
  1138. Scrophularia
    type genus of Scrophulariaceae
  1139. sea kale
    perennial of coastal sands and shingles of northern Europe and Baltic and Black Seas having racemes of small white flowers and large fleshy blue-green leaves often used as potherbs
  1140. Secale
    cereal grass widely cultivated for its grain: rye
  1141. Secale cereale
    hardy annual cereal grass widely cultivated in northern Europe where its grain is the chief ingredient of black bread and in North America for forage and soil improvement
  1142. secrete
    generate and separate from cells or bodily fluids
  1143. sedum
    any of various plants of the genus Sedum
  1144. seed vessel
    the ripened and variously modified walls of a plant ovary
  1145. seedling
    young plant or tree grown from a seed
  1146. Selenipedium
    genus of tall reedlike tropical American orchids
  1147. semilunar
    resembling the new moon in shape
  1148. Senecio
    enormous and diverse cosmopolitan genus of trees and shrubs and vines and herbs including many weeds
  1149. Senecio vulgaris
    Eurasian weed with heads of small yellow flowers
  1150. sepal
    one of the green parts that form the calyx of a flower
  1151. septum
    a dividing partition between two tissues or cavities
  1152. Sesamum
    tropical African and Indian herbs
  1153. Sesamum indicum
    East Indian annual erect herb
  1154. Seseli
    a rosid dicot genus that includes moon carrots
  1155. sessile
    attached directly by the base
  1156. sexual characteristic
    those characteristics (both anatomical and psychological) that are strongly associated with one sex relative to the other
  1157. shamrock
    clover with three round leaves that is native to Ireland
  1158. Sideritis
    genus of woolly aromatic herbs or subshrubs or shrubs of Mediterranean region
  1159. sigmoid
    curved in two directions (like the letter S)
  1160. silene
    any plant of the genus Silene
  1161. silicle
    short broad silique occurring in some cruciferous plants
  1162. siliqua
    narrow elongated seed capsule peculiar to the family Cruciferae
  1163. silique
    narrow elongated seed capsule peculiar to the family Cruciferae
  1164. simplex
    having only one part or element
  1165. Sinapis
    small genus of Old World herbs usually included in genus Brassica
  1166. Sinapis arvensis
    weedy Eurasian plant often a pest in grain fields
  1167. singularity
    the quality of being one of a kind
  1168. Sinningia
    genus of perennial tuberous herbs and shrubs of Central and South America
  1169. Sisymbrium officinale
    stiffly branching Old World annual with pale yellow flowers
  1170. Solanum tuberosum
    annual native to South America having underground stolons bearing edible starchy tubers; widely cultivated as a garden vegetable; vines are poisonous
  1171. Sophora
    cosmopolitan genus of trees and shrubs having odd-pinnate leaves and showy flowers; some species placed in genus Podalyria
  1172. sorus
    cluster of sporangia usually on underside of a fern frond
  1173. spadix
    the fleshy axis of a spike often surrounded by a spathe
  1174. Spartium
    one species: Spanish broom
  1175. Spartium junceum
    tall thornless shrub having pale yellow flowers and flexible rushlike twigs used in basketry; of southwestern Europe and Mediterranean; naturalized in California
  1176. spathe
    a conspicuous bract surrounding or subtending a spadix or other inflorescence
  1177. spathiphyllum
    any of various plants of the genus Spathiphyllum having a white or green spathe and a spike of fragrant flowers and often cultivated as an ornamental
  1178. specimen
    a bit of tissue or fluid taken for diagnostic purposes
  1179. spicate
    having or relating to spikes
  1180. spikelet
    a small sharp-pointed tip resembling a spike on a stem or leaf
  1181. Spinacia
    spinach
  1182. Spinacia oleracea
    southwestern Asian plant widely cultivated for its succulent edible dark green leaves
  1183. spine
    the series of vertebrae forming the backbone
  1184. Spiranthes
    large cosmopolitan genus of white-flowered terrestrial orchids
  1185. spore
    a small usually single-celled asexual reproductive body produced by many nonflowering plants and fungi and some bacteria and protozoans and that are capable of developing into a new individual without sexual fusion
  1186. spore case
    organ containing or producing spores
  1187. Stachys
    large genus of usually woolly or hairy herbs or subshrubs or shrubs; temperate eastern hemisphere; tropical Australasia
  1188. Stachys sylvatica
    foul-smelling perennial Eurasiatic herb with a green creeping rhizome
  1189. stamen
    the pollen-producing reproductive organ of a flower
  1190. stapelia
    any of various plants of the genus Stapelia having succulent leafless toothed stems resembling cacti and large foul-smelling (often star-shaped) flowers
  1191. Staphylea
    a genus of small trees or shrubs of the family Staphylaceae
  1192. stasis
    inactivity resulting from a balance between opposing forces
  1193. Stellaria
    common chickweed; stitchwort
  1194. Stellaria media
    a common low-growing annual garden weed with small white flowers; cosmopolitan; so-called because it is eaten by chickens
  1195. stellate
    arranged like rays or radii; radiating from a common center
  1196. stemless
    not having a stem
  1197. sterculia
    any tree of the genus Sterculia
  1198. sterile
    incapable of reproducing
  1199. stigma
    a symbol of disgrace or infamy
  1200. stipule
    a small leafy outgrowth at the base of a leaf or its stalk
  1201. stoma
    a pore in a plant through which gases and vapor can pass
  1202. stone fruit
    fleshy indehiscent fruit with a single seed: e.g. almond
  1203. Strelitzia
    small genus of large perennial evergreen herbs having leaves resembling those of banana plants; sometimes placed in family Musaceae
  1204. streptocarpus
    any of various plants of the genus Streptocarpus having leaves in a basal rosette and flowers like primroses
  1205. stria
    any of a number of tiny parallel grooves such as: the scratches left by a glacier on rocks or the streaks or ridges in muscle tissue
  1206. strobile
    cone-shaped mass of ovule- or spore-bearing scales or bracts
  1207. strobilus
    cone-shaped mass of ovule- or spore-bearing scales or bracts
  1208. strophanthus
    any of various shrubs or small trees of the genus Strophanthus having whorled leaves and showy flowers of various colors in dense and corymbose clusters; some have poisonous seeds
  1209. subdirectory
    a directory that is listed in another directory
  1210. subdivision
    the act of subdividing
  1211. subtend
    be opposite to; of angles and sides, in geometry
  1212. succulent
    tasty and full of juice
  1213. supernumerary
    more than is needed, desired, or required
  1214. superposition
    the placement of one thing on top of another
  1215. sursum corda
    a Latin versicle meaning `lift up your hearts'
  1216. suture
    a seam used in surgery
  1217. sweet
    having or denoting the characteristic taste of sugar
  1218. sweet chestnut
    wild or cultivated throughout southern Europe, northwestern Africa and southwestern Asia
  1219. symmetry
    balance among the parts of something
  1220. Symphytum
    comfrey
  1221. Symphytum officinale
    European herb having small white, pink or purple flowers
  1222. syncarpous
    consisting of united carpels
  1223. Syringa
    genus of Old World shrubs or low trees having fragrant flowers in showy panicles: lilacs
  1224. Syringa persica
    small densely branching Asiatic shrub having lanceolate leaves and panicles of fragrant lilac flowers
  1225. Syringa vulgaris
    large European lilac naturalized in North America having heart-shaped ovate leaves and large panicles of highly fragrant lilac or white flowers
  1226. systematist
    an organizer who puts things in order
  1227. Tamus
    a genus of tuberous vines of the family Dioscoreaceae
  1228. Tamus communis
    common European twining vine with tuberous roots and cordate leaves and red berries
  1229. Taraxacum
    an asterid dicot genus of the family Compositae including dandelions
  1230. Taxodium
    bald cypress; swamp cypress
  1231. Taxodium distichum
    common cypress of southeastern United States having trunk expanded at base; found in coastal swamps and flooding river bottoms
  1232. Taxus
    yews
  1233. Taxus baccata
    predominant yew in Europe
  1234. teazel
    any of several herbs of the genus Dipsacus native to the Old World having flower heads surrounded by spiny bracts
  1235. tegument
    a natural protective body covering and site of the sense of touch
  1236. tendril
    slender structure by which some plants attach to an object
  1237. tepal
    an undifferentiated part of a perianth that cannot be distinguished as a sepal or a petal (as in lilies and tulips)
  1238. teratology
    the branch of biology concerned with the development of malformations or serious deviations from the normal type of organism
  1239. terminate
    bring to an end or halt
  1240. tertiary
    coming third in position
  1241. testa
    protective outer layer of seeds of flowering plants
  1242. testis
    one of the two male reproductive glands that produce spermatozoa and secrete androgens
  1243. Tetragonia
    New Zealand spinach
  1244. Tetragonia expansa
    coarse sprawling Australasian plant with red or yellow flowers; cultivated for its edible young shoots and succulent leaves
  1245. tetramerous
    having or consisting of four similar parts
  1246. Teucrium
    large widely distributed genus of perennial herbs or shrubs or subshrubs; native to Mediterranean region to western Asia
  1247. thalamus
    large egg-shaped structure of gray matter located in the center of the brain
  1248. Thalictrum
    widely distributed genus of perennial herbs: meadow rue
  1249. thallus
    a plant body without true stems or roots or leaves or vascular system; characteristic of the thallophytes
  1250. Thlaspi
    herbs of temperate regions: pennycress
  1251. Thlaspi arvense
    foetid Eurasian weed having round flat pods
  1252. thrip
    any of various small to minute sucking insects with narrow feathery wings if any; they feed on plant sap and many are destructive
  1253. thrips
    any of various small to minute sucking insects with narrow feathery wings if any; they feed on plant sap and many are destructive
  1254. Thuja
    red cedar
  1255. Thuja occidentalis
    small evergreen of eastern North America having tiny scalelike leaves on flattened branchlets
  1256. Thuja orientalis
    Asiatic shrub or small tree widely planted in United States and Europe; in some classifications assigned to its own genus
  1257. Thymus
    large genus of Old World mints: thyme
  1258. Tilia
    deciduous trees with smooth usually silver-grey bark of North America and Europe and Asia: lime trees; lindens; basswood
  1259. tithonia
    any plant of the genus Tithonia
  1260. Tofieldia
    genus of perennial herbs of cool temperate regions
  1261. torsion
    a twisting force
  1262. torus
    a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circle
  1263. Toxicodendron
    in some classifications: comprising those members of the genus Rhus having foliage that is poisonous to the touch; of North America and northern South America
  1264. Toxicodendron quercifolium
    poisonous shrub of southeastern United States causing a rash on contact
  1265. Tradescant
    English botanist who was one of the first to collect specimens of plants (1570-1638)
  1266. Tradescantia
    spiderworts
  1267. Tragopogon
    genus of Old World herbs with linear entire leaves and yellow or purple flower heads
  1268. transmutation
    an act that changes the form or character or substance of something
  1269. Trapa
    small genus of Eurasian aquatic perennial herbs: water chestnut
  1270. Trapa natans
    a variety of water chestnut
  1271. trefoil
    a plant of the genus Trifolium
  1272. Trichomanes
    bristle ferns; kidney ferns
  1273. trifoliate
    (of a leaf shape) having three leaflets
  1274. Trifolium
    any leguminous plant having leaves divided into three leaflets
  1275. Trifolium repens
    creeping European clover having white to pink flowers and bright green leaves; naturalized in United States; widely grown for forage
  1276. trillium
    any liliaceous plant of the genus Trillium having a whorl of three leaves at the top of the stem with a single three-petaled flower
  1277. Triticum
    annual cereal grasses from Mediterranean area
  1278. Trollius
    perennial herbs of north temperate regions: globeflowers
  1279. tuber
    a fleshy underground stem or root, often used as food
  1280. tubercle
    small rounded wartlike protuberance on a plant
  1281. tubular
    constituting a tube; having hollow tubes
  1282. tulip
    any of numerous perennial bulbous herbs having linear or broadly lanceolate leaves and usually a single showy flower
  1283. Tulipa
    Eurasian perennial bulbous herbs
  1284. tumid
    abnormally distended especially by fluids or gas
  1285. turbinate
    in the shape of a coil
  1286. Turritis
    closely related to and often included in genus Arabis
  1287. Turritis glabra
    or genus Arabis: erect cress widely distributed throughout Europe
  1288. Typha
    reed maces; cattails
  1289. Ulex
    genus of Eurasian spiny shrubs: gorse
  1290. Ulmus
    type genus of family Ulmaceae
  1291. Ulmus americana
    large ornamental tree with graceful gradually spreading branches common in eastern North America
  1292. umbel
    flat-topped or rounded inflorescence characteristic of the family Umbelliferae in which the individual flower stalks arise from about the same point; youngest flowers are at the center
  1293. umbellifer
    any of numerous aromatic herbs of the family Umbelliferae
  1294. umbelliferous
    relating to or belonging to plants of the family Umbelliferae
  1295. unisexual
    relating to only one sex or having only one type of sexual organ; not hermaphroditic
  1296. Urtica
    a nettle yielding fiber resembling flax
  1297. Urtica dioica
    perennial Eurasian nettle established in North America having broad coarsely toothed leaves with copious stinging hairs
  1298. uterus
    a hollow muscular organ in the pelvic cavity of females
  1299. utricle
    a small pouch into which the semicircular canals open
  1300. Vaccinium
    evergreen or deciduous berry-bearing shrubs of northern hemisphere: cranberries; blueberries
  1301. vagina
    the lower part of the female reproductive tract
  1302. Valeriana
    genus of widely distributed perennial herbs and some shrubs
  1303. Valeriana officinalis
    tall rhizomatous plant having very fragrant flowers and rhizomes used medicinally
  1304. Vallisneria
    eelgrass; eel grass
  1305. variable
    something that is likely to change
  1306. variegated
    having an assortment of colors
  1307. vascular
    relating to vessels that conduct and circulate fluids
  1308. vascular bundle
    a unit strand of the vascular system in stems and leaves of higher plants consisting essentially of xylem and phloem
  1309. vascular system
    the vessels and tissue that carry or circulate fluids such as blood or lymph or sap through the body of an animal or plant
  1310. vascular tissue
    tissue that conducts water and nutrients through the plant body in higher plants
  1311. veg
    edible seeds or roots or stems or leaves or bulbs or tubers or nonsweet fruits of any of numerous herbaceous plant
  1312. vegetable marrow
    any of various squash plants grown for their elongated fruit with smooth dark green skin and whitish flesh
  1313. vegetative
    of or relating to an activity that is passive and monotonous
  1314. venation
    (botany) the arrangement of veins in a leaf
  1315. ventral
    toward or on or near the belly
  1316. Verbascum
    genus of coarse herbs and subshrubs mostly with woolly leaves
  1317. verbena
    any of numerous tropical or subtropical American plants of the genus Verbena grown for their showy spikes of variously colored flowers
  1318. vernation
    (botany) the arrangement of young leaves in a leaf bud before it opens
  1319. vervain
    any of numerous tropical or subtropical American plants of the genus Verbena grown for their showy spikes of variously colored flowers
  1320. vesicle
    a small anatomically normal sac or bladderlike structure
  1321. Vespertilio
    a genus of Vespertilionidae
  1322. Viburnum
    deciduous or evergreen shrubs or small trees: arrow-wood
  1323. Vicia
    widely distributed genus of annual or perennial and often climbing herbs
  1324. Vinca
    periwinkles: low creeping evergreen perennials
  1325. Vinca minor
    widely cultivated as a groundcover for its dark green shiny leaves and usually blue-violet flowers
  1326. Vinca rosea
    commonly cultivated Old World woody herb having large pinkish to red flowers
  1327. Vinca rosea
    commonly cultivated Old World woody herb having large pinkish to red flowers
  1328. vinifera
    common European grape cultivated in many varieties
  1329. Viola odorata
    European violet typically having purple to white flowers
  1330. Viola tricolor
    a common and long cultivated European herb from which most common garden pansies are derived
  1331. Viscum
    type genus of the Viscaceae: Old World evergreen shrubs parasitic on many trees including oaks but especially apple trees, poplars, aspens and cottonwoods
  1332. Viscum album
    Old World parasitic shrub having branching greenish stems with leathery leaves and waxy white glutinous berries; the traditional mistletoe of Christmas
  1333. Vitis
    the type genus of the family Vitaceae
  1334. Vitis vinifera
    common European grape cultivated in many varieties
  1335. viviparous
    producing living young and not eggs
  1336. wallflower
    any of numerous plants of the genus Erysimum having fragrant yellow or orange or brownish flowers
  1337. wart
    any small rounded protuberance
  1338. water plant
    a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth
  1339. web page
    a document connected to the World Wide Web and viewable by anyone connected to the internet who has a web browser
  1340. weigela
    deciduous shrub widely cultivated for its white or pink or red flowers
  1341. welwitschia
    curious plant of arid regions of southwestern Africa having a yard-high and yard-wide trunk like a turnip with a deep taproot and two large persistent woody straplike leaves growing from the base; living relic of a flora long disappeared; some may be 700-5000 years old
  1342. white clover
    creeping European clover having white to pink flowers and bright green leaves; naturalized in United States; widely grown for forage
  1343. white lily
    lily of eastern Mediterranean and the Balkans with broad funnel-shaped white flowers
  1344. wholesomeness
    the quality of being beneficial and generally good for you
  1345. whorl
    a round shape formed by a series of concentric circles
  1346. wild celery
    herb of Europe and temperate Asia
  1347. wistaria
    any flowering vine of the genus Wisteria
  1348. witch broom
    an abnormal tufted growth of small branches on a tree or shrub caused by fungi or insects or other physiological disturbance
  1349. witches' broom
    an abnormal tufted growth of small branches on a tree or shrub caused by fungi or insects or other physiological disturbance
  1350. woody plant
    a plant having hard lignified tissues or woody parts especially stems
  1351. word processing
    rapid and efficient processing (storage and printing) of linguistic data for composition and editing
  1352. Xanthosoma
    tropical American tuberous perennials
  1353. yellow
    yellow color or pigment
  1354. yellow jasmine
    poisonous woody evergreen vine of southeastern United States having fragrant yellow funnel-shaped flowers
  1355. yucca
    any of several evergreen plants of the genus Yucca having usually tall stout stems and a terminal cluster of white flowers; warmer regions of North America
  1356. zamia
    any of various cycads of the genus Zamia
  1357. Zingiber
    tropical Asiatic and Polynesian perennial plants: ginger
  1358. zinnia
    any of various plants of the genus Zinnia cultivated for their variously and brightly colored flower heads
Created on Sun Aug 16 19:01:10 EDT 2009 (updated Thu Aug 20 22:52:57 EDT 2009)

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