poisonous plant

Definitions of poisonous plant
  1. noun
    a plant that when touched or ingested in sufficient quantity can be harmful or fatal to an organism
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    any of various usually poisonous plants of the genus Aconitum having tuberous roots and palmately lobed leaves and blue or white flowers
    baneberry, cohosh, herb Christopher
    a plant of the genus Actaea having acrid poisonous berries
    any plant of the Eurasian genus Helleborus
    any of several poisonous perennial plants of the genus Apocynum having acrid milky juice and bell-shaped white or pink flowers and a very bitter root
    Nerium oleander, oleander, rose bay
    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
    Gloriosa superba, climbing lily, creeping lily, gloriosa, glory lily
    any plant of the genus Gloriosa of tropical Africa and Asia; a perennial herb climbing by means of tendrils at leaf tips having showy yellow to red or purple flowers; all parts are poisonous
    Symphoricarpos alba, common snowberry, snowberry, waxberry
    deciduous shrub of western North America having spikes of pink flowers followed by round white berries
    American holly, Christmas holly
    an evergreen tree
    Rhus vernix, Toxicodendron vernix, poison ash, poison dogwood, poison sumac
    smooth American swamp shrub with pinnate leaves and greenish flowers followed by greenish white berries; yields an irritating oil
    Rhus radicans, Toxicodendron radicans, markweed, poison ivy, poison mercury, poison oak
    climbing plant common in eastern and central United States with ternate leaves and greenish flowers followed by white berries; yields an irritating oil that causes a rash on contact
    Rhus diversiloba, Toxicodendron diversilobum, western poison oak
    poisonous shrub of the Pacific coast of North America that causes a rash on contact
    Rhus quercifolia, Rhus toxicodenedron, Toxicodendron quercifolium, eastern poison oak
    poisonous shrub of southeastern United States causing a rash on contact
    Chinese lacquer tree, Japanese lacquer tree, Japanese sumac, Japanese varnish tree, Rhus verniciflua, Toxicodendron vernicifluum, lacquer tree, varnish tree
    small Asiatic tree yielding a toxic exudate from which lacquer is obtained
    a flowering shrub
    Aethusa cynapium, fool's parsley, lesser hemlock
    European weed naturalized in America that resembles parsley but causes nausea and poisoning when eaten
    Cicuta verosa, water hemlock
    tall erect highly poisonous Eurasiatic perennial herb locally abundant in marshy areas
    spotted cowbane, spotted hemlock, spotted water hemlock
    tall biennial water hemlock of northeastern North America having purple-spotted stems and clusters of extremely poisonous tuberous roots resembling small sweet potatoes
    California fern, Conium maculatum, Nebraska fern, hemlock, poison hemlock, poison parsley, winter fern
    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
    Oenanthe crocata, hemlock water dropwort, water dropwort
    European poisonous herb having tuberous roots, yellow juice that stains the skin, yellow flowers and foliage resembling celery; all parts extremely poisonous
    Oenanthe aquatica, water fennel
    European poisonous herb with fibrous roots
    Aconitum napellus, helmet flower, helmetflower, monkshood
    a poisonous herb native to northern Europe having hooded blue-purple flowers; the dried leaves and roots yield aconite
    Aconitum lycoctonum, wolf's bane, wolfbane, wolfsbane
    poisonous Eurasian perennial herb with broad rounded leaves and yellow flowers and fibrous rootstock
    Actaea rubra, red baneberry, red-berry, redberry, snakeberry
    North American perennial herb with alternately compound leaves and racemes of small white flowers followed by bright red oval poisonous berries
    Actaea alba, doll's eyes, white baneberry, white bead, white cohosh
    North American herb with white poisonous berries
    Helleborus foetidus, bear's foot, setterwort, stinking hellebore
    digitate-leaved hellebore with an offensive odor and irritant qualities when taken internally
    Christmas rose, Helleborus niger, black hellebore, winter rose
    European evergreen plant with white or purplish rose-like winter-blooming flowers
    Helleborus orientalis, black hellebore, lenten rose
    slightly hairy perennial having deep green leathery leaves and flowers that are ultimately purplish-green
    Helleborus viridis, green hellebore
    deciduous plant with large deep green pedate leaves and nodding saucer-shaped green flowers
    Apocynum androsaemifolium, common dogbane, rheumatism weed, spreading dogbane
    North American perennial having pinkish flowers in loose cymes; used in folk medicine for pain or inflammation in joints
    Apocynum cannabinum, Indian hemp, rheumatism weed
    Canadian dogbane yielding a tough fiber used as cordage by Native Americans; used in folk medicine for pain or inflammation in joints
    Apocynum pumilum, Rocky Mountain dogbane
    North American plant similar to common dogbane
    type of:
    flora, plant, plant life
    (botany) a living organism lacking the power of locomotion
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