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Photographer: Derek Anderson
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Family Asclepiadaceae
Asclepias sullivantii Engelm. ex A.Gray
prairie milkweed, smooth milkweed, Sullivant's milkweed
Asclepias: named for the Greek god of healing Asklepios
sullivantii: for William Starling Sullivant (1803-1873)
Hazardous 
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| Status: | Threatened |
| Plant: | erect, perennial, 1'-3' tall forb, single stem, hairless, milky juice |
| Flower: | 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. |
| Fruit: | smooth, erect pods on a downwardly-turning stalk; many seeds on silky hairs |
| Leaf: | thick, smooth, broadly elliptical to oblong, opposite, stalkless, the broadly-rounded base somewhat clasping the stem |
| Habitat: | full sun; moist to moderate moisture; prairies; in loamy, clayey soil |
| (Glossary) |
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