Herbs perennial, forming bushy clumps, caulescent; caudex superficial or shallowly subterranean. Hairs basifixed. Stems several to many. Stipules connate or distinct at distal nodes. Leaves odd-pinnate, short-petiolate proximally, sessile or subsessile distally; leaflets (13–)17–25(or 27). Racemes loosely flowered, flowers ascending or spreading. Calyx tubes campanulate or short-cylindric. Corollas whitish or lilac-tinged, banner recurved through 40°, keel apex obtuse. Legumes eventually deciduous, continuous with receptacle, stipitate, ascending, spreading, or declined, obliquely ovoid or ovoid-acuminate, inflated, ± obcompressed, bilocular. Seeds 12–21.

Distribution

w United States.

Discussion

Species 1.

Selected References

None.

Lower Taxa

Astragalus bolanderi