Astragalus praelongus (stinking milkvetch) is a perennial plant in the legume family (Fabaceae) found in the Colorado Plateau and Canyonlands region of the southwestern United States.Canyon Country Wildflowers, Damian Fagan, 2nd ed., 2012, Morris Bush Publishing, LLC. in cooperation with Canyonlands Natural History Association, It's fleshy seedpods become woody with age. It grows in soils containing selenium.
A. praelongus var. ellisiae was named for Charlotte Cortlandt Ellis, who collected the holotype specimen in the Sandia Mountains of New Mexico near where she lived.
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