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milkweed

Definitions of milkweed
  1. noun
    any of numerous plants of the genus Asclepias having milky juice and pods that split open releasing seeds with downy tufts
    synonyms: silkweed
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    types:
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    Asclepias albicans, white milkweed
    tall herb with leafless white waxy stems and whitish starlike flowers; southwestern United States
    Asclepias curassavica, blood flower, swallowwort
    tropical herb having orange-red flowers followed by pods suggesting a swallow with outspread wings; a weed throughout the tropics
    Asclepias exaltata, poke milkweed
    milkweed of the eastern United States with leaves resembling those of pokeweed
    Asclepias incarnata, swamp milkweed
    densely branching perennial of the eastern United States with white to crimson or purple flowers
    Asclepia meadii, Asclepias meadii, Mead's milkweed
    milkweed of central North America; a threatened species
    Asclepias purpurascens, purple silkweed
    perennial of eastern North America having pink-purple flowers
    Asclepias speciosa, showy milkweed
    milkweed of southern North America having large starry purple and pink flowers
    Asclepias subverticillata, horsetail milkweed, poison milkweed
    milkweed of southwestern United States and Mexico; poisonous to livestock
    Asclepias tuberosa, Indian paintbrush, butterfly weed, chigger flower, chiggerflower, orange milkweed, pleurisy root, tuber root
    erect perennial of eastern and southern United States having showy orange flowers
    Asclepias verticillata, whorled milkweed
    milkweed of the eastern United States with narrow leaves in whorls and greenish-white flowers
    type of:
    herb, herbaceous plant
    a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests
  2. noun
    annual Eurasian sow thistle with soft spiny leaves and rayed yellow flower heads
    synonyms: Sonchus oleraceus
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    type of:
    milk thistle, sow thistle
    any of several Old World coarse prickly-leaved shrubs and subshrubs having milky juice and yellow flowers; widely naturalized; often noxious weeds in cultivated soil
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