prairie milkweed, smooth milkweed, Sullivant's milkweed
Etymology: Asclepias: named for the Greek god of healing Asklepios
Plants: erect, perennial, 1'-3' tall forb, single stem, hairless, milky juice
Leaves: thick, smooth, broadly elliptical to oblong, opposite, stalkless, the broadly-rounded base somewhat clasping the stem
Flowers: pink to cream, 5-parted, 1/2"-3/4" tall, horns horizontally turned inward; inflorescence erect umbels from the upper nodes of the stem; blooms June-Aug.
Fruits: smooth, erect pods on a downwardly-turning stalk; many seeds on silky hairs
Habitat: full sun; moist to moderate moisture; prairies; in loamy, clayey soil
Hazardous: Careful, this plant is hazardous!
Conservation Status: Threatened
Floristic Rating: Coefficient of Conservatism = 8 WIS DNR-Bureau of Endangered Resources: Detailed information on Wisconsin listed species including state and federal status, photos, etc. Atlas of the Wisconsin Prairie and Savanna Flora: by T.S. Cochrane & H.H. Iltis: habitat, distribution infomation / flowering and fruiting times Minnesota Dept. of Natural Resources: Rare Species Guide; description, conservation, photos, maps, etc. USDA Plants Database: Federal Distribution and detailed information including photos Illinois Wildflowers: Wonderful photographs; detailed descriptions; color and leaf arrangement key