Herbs perennial, caulescent; caudex shallowly subterranean. Hairs basifixed. Stems few. Stipules distinct. Leaves odd-pinnate, short-petiolate or subsessile; leaflets (7–)11–23. Racemes compactly flowered early, flowers nodding. Calyx tubes broadly cylindric or deeply campanulate. Corollas ochroleucous, banner recurved through 45°, keel apex obtuse. Legumes persistent, stipitate, erect or incurved-ascending, oblong-ellipsoid, somewhat laterally compressed, with protruding sutures, unilocular. Seeds 6–8.

Distribution

nw United States.

Discussion

Species 1.

Section Tweedyani is distributed in the lower Columbia Valley in northern Oregon and adjacent Washington.

Selected References

None.

Lower Taxa

Astragalus tweedyi