Asclepias sullivantii is a species of flowering plant in the milkweed genus, Asclepias. Common names include prairie milkweed, Sullivant's milkweed, and smooth milkweed. It is native to North America, where it occurs in the central United States and Ontario in Canada.
This is a perennial herb growing from deep rhizomes. The stem is 40 centimeters to just over one meter tall. The ovate, pointed leaves are oppositely arranged. The blades have wavy margins, reddish midveins, and hairless undersides. ...
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*All information is based on published scientific research