| asclepias | (n) genus of chiefly North American perennial herbs: silkweed; milkweed, Syn. genus Asclepias |
| blood flower | (n) tropical herb having orange-red flowers followed by pods suggesting a swallow with outspread wings; a weed throughout the tropics, Syn. Asclepias curassavica, swallowwort |
| butterfly weed | (n) erect perennial of eastern and southern United States having showy orange flowers, Syn. tuber root, Indian paintbrush, Asclepias tuberosa, pleurisy root, chigger flower, chiggerflower, orange milkweed |
| mead's milkweed | (n) milkweed of central North America; a threatened species, Syn. Asclepias meadii, Asclepia meadii |
| poison milkweed | (n) milkweed of southwestern United States and Mexico; poisonous to livestock, Syn. horsetail milkweed, Asclepias subverticillata |
| poke milkweed | (n) milkweed of the eastern United States with leaves resembling those of pokeweed, Syn. Asclepias exaltata |
| purple silkweed | (n) perennial of eastern North America having pink-purple flowers, Syn. Asclepias purpurascens |
| showy milkweed | (n) milkweed of southern North America having large starry purple and pink flowers, Syn. Asclepias speciosa |
| swamp milkweed | (n) densely branching perennial of the eastern United States with white to crimson or purple flowers, Syn. Asclepias incarnata |
| white milkweed | (n) tall herb with leafless white waxy stems and whitish starlike flowers; southwestern United States, Syn. Asclepias albicans |
| whorled milkweed | (n) milkweed of the eastern United States with narrow leaves in whorls and greenish-white flowers, Syn. Asclepias verticillata |
| Asclepias | ‖ n. [ L., fr. Gr. &unr_;, named from Asclepios or Aesculapius. ] (Bot.) A genus of plants including the milkweed, swallowwort, and some other species having medicinal properties. [ 1913 Webster ]
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