Herbs perennial, dwarf, forming loose tufts, subacaulescent to shortly caulescent; caudex subterranean. Hairs basifixed. Stems few. Stipules connate. Leaves odd-pinnate, short-petiolate; leaflets 5–13. Racemes subumbellate, flowers ascending. Calyx tubes campanulate. Corollas pink-purple or whitish, keel tip purple, banner recurved through 45°, keel apex long-attenuate and beaklike, style at anthesis exserted. Legumes deciduous, sessile, spreading (humistrate), broadly ellipsoid or subglobose, bladdery-inflated, bilocular. Seeds 20–28.

Distribution

sw United States.

Discussion

Species 1.

Selected References

None.

Lower Taxa

Astragalus striatiflorus