Flora of North America species comparison

erect or ascending, sparsely strigulose.

single or few to many.

(1.5–)2–6(–7.5) cm;

stipules 1.5–4.5 mm, membranous becoming papery;

leaflets 7–13, blades cuneate-obovate to oblong-elliptic, 3–10(–12) mm, apex retuse or obtuse, surfaces sparsely strigulose abaxially, glabrous adaxially.

odd-pinnate, petiolate to subsessile;

leaflets (3 or)5–25(or 27).

densely 3–10-flowered, flowers ascending to spreading;

axis to 0.5 cm, not or scarcely elongating;

bracts 0.6–2 mm;

bracteoles 0 or 1.

subumbellate or loosely flowered, flowers ascending, spreading, or declined.

erect or divaricate and ascending, (2–)3–9(–11) cm.

0.4–1.4 mm.

7.8–11.4 mm;

calyx 3.8–5.1 mm, strigulose, tube 2.5–3.5 mm, lobes subulate, 1–2 mm;

corolla whitish, banner and, sometimes, wings veined or suffused lilac, keel tip purple;

banner recurved through 35–45°;

keel (5–)5.4–7.8 mm, apex round.

usually pink-purple, purple or purple-tinged or -tipped, ochroleucous, or lilac, rarely whitish, banner recurved through 20–80°, keel apex acute, round, deltate, or triangular-acuminate, sometimes slightly beaklike.

tubes campanulate.

stellately ascending, green, straight, ovoid, ovoid-oblong, or fusiform, obscurely 3-sided compressed, falling before splitting, dehiscent on ground, 5.5–10 × (2.5–)2.8–4 mm, thinly fleshy becoming stiffly papery, apex acuminate-tapered or cuneately contracted into a straight, elongate-subulate, spinelike, glabrescent beak (3.5–)4–10 mm, densely silvery-strigulose; bearing seeds in proximal 1/2.

deciduous, usually sessile, rarely short-stipitate, short gynophore sometimes present, ascending, spreading to declined, incurved-ascending, or pendulous, mostly linear to linear-oblanceoloid, oblong, or crescentic, sometimes 3-sided, rarely ellipsoid or fleshy, straight or incurved, rarely slightly decurved, compressed laterally, slightly 3-sided or subterete, bilocular.

2–6.

(2–)4–30.

basifixed or malpighian.

distinct.

= 22.