Herbs perennial, caulescent; caudex subterranean. Hairs basifixed. Stems few to several. Stipules connate. Leaves odd-pinnate, petiolate; leaflets (7 or)9–15(or 17). Racemes loosely flowered, flowers spreading-ascending. Calyx tubes campanulate. Corollas usually pink or purplish, rarely white, banner recurved through 30–45°, keel apex obtuse, length nearly equal to wings. Legumes deciduous, sessile, gynophore present, ascending and humistrate, linear-oblong, lunately to annulately incurved, strongly compressed laterally, with protruding sutures, unilocular. Seeds 8–16.

Distribution

nw North America.

Discussion

Species 1.

Selected References

None.

Lower Taxa

Astragalus nutzotinensis