Flora of North America species comparison

several to many.

odd-pinnate, short-petiolate or subsessile;

leaflets (7 or)9–21(–25), jointed.

densely flowered initially, sometimes loose, flowers nodding, often retrorsely imbricate.

white, ochroleucous, or pale yellow, banner recurved through 45–90(–100)°, keel apex obtuse.

tubes broadly campanulate or cylindric, usually somewhat swollen, strongly oblique, either gibbous-saccate behind pedicel or truncate at base and pedicel attached at proximal corner.

usually straight, rarely slightly incurved, linear-oblong, 7–25 × 2.5–3.4(–4) mm, villosulous or loosely strigulose, hairs to 0.3–0.5 mm;

stipe (5)6–15 mm.

eventually deciduous, stipitate, pendulous or horizontally spreading, linear-, ovoid-, or lunate-oblong, or coiled, laterally compressed, with protruding sutures, unilocular.

(10–)12–18.

(7 or)8–30.

basifixed.

distinct or connate at proximal nodes.