Etymology: Astragalus: from Greek astragalos meaning "ankle bone" and an early name applied to some plants in this family because of the shape of the seeds; also could mean "star" or "milk"
Plants: more or less erect, perennial, 1'-3' long, branched forb; clustered, leafy stem usually hollow; taproot
Leaves: pinnately-divided into 11-23, oblong to obovate leaflets 1/3"-1" long with hairs beneath
Flowers: white to cream, 5-parted, 1/2" long; inflorescence several clusters (racemes) of 10-20 stalked flowers barely above the upper leaves
Fruits: erect, stalkless, straight, inflated, smooth, up to 3/4" long pod
Habitat: Lake Michigan shore, on linestone
Conservation Status: Endangered