Astragalus sect. Oocalyces |
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Habit | Herbs perennial, selenophytes, caulescent; caudex superficial or shallowly subterranean. |
Stems | several to many. |
Leaves | odd-pinnate, short-petiolate or subsessile; leaflets (9–)19–27. |
Racemes | densely flowered, flowers nodding. |
Corollas | ochroleucous, banner recurved through 45°, keel apex round. |
Calyx | tubes deciduous, obliquely ovoid, accrescent and inflated, enclosing small pod. |
Legumes | deciduous, sessile, gynophore present, curved, declined, oblong-ellipsoid, strongly obcompressed with 2 adaxial grooves, unilocular. |
Seeds | 6–8. |
Hairs | basifixed. |
Stipules | connate at proximal nodes, distinct at distal nodes. |
Astragalus sect. Oocalyces |
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Distribution | sw United States |
Discussion | Species 1. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. |
Parent taxa | |
Subordinate taxa | |
Name authority | Barneby: Mem. New York Bot. Gard. 13: 419. (1964) |
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