Noun milkweed has 2 senses
  1. milkweed, silkweed - any of numerous plants of the genus Asclepias having milky juice and pods that split open releasing seeds with downy tufts
    --1 is a kind of herb, herbaceous plant
    --1 is a member of Asclepias, genus Asclepias
    --1 has particulars:
     white milkweed, Asclepias albicans; blood flower, swallowwort, Asclepias curassavica; poke milkweed, Asclepias exaltata; swamp milkweed, Asclepias incarnata; Mead's milkweed, Asclepias meadii, Asclepia meadii; purple silkweed, Asclepias purpurascens; showy milkweed, Asclepias speciosa; poison milkweed, horsetail milkweed, Asclepias subverticillata; butterfly weed, orange milkweed, chigger flower, chiggerflower, pleurisy root, tuber root, Indian paintbrush, Asclepias tuberosa; whorled milkweed, Asclepias verticillata
  2. milkweed, Sonchus oleraceus - annual Eurasian sow thistle with soft spiny leaves and rayed yellow flower heads
    --2 is a kind of sow thistle, milk thistle
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