Flora of North America species comparison

erect to ascending, strigulose.

several to many.

5–21 cm;

stipules 2.5–6 mm, papery at proximal nodes, subherbaceous at distal nodes;

leaflets (15–)19–27(or 29), blades oblong, oblong-oblanceolate, or linear-oblong to linear, 5–25 mm, apex truncate to retuse or apiculate, surfaces strigulose abaxially, glabrous adaxially.

odd-pinnate, usually petiolate, rarely short-petiolate or subsessile;

leaflets (5 or)7–41.

10–20(–25)-flowered, flowers nodding;

axis (3–)5–27 cm in fruit;

bracts 1–3.5 mm;

bracteoles 0–2.

loosely flowered, sometimes initially densely flowered, flowers usually ascending, spreading, or nodding, rarely declined; length of peduncle and raceme combined usually exceeding stem length, sometimes shorter.

erect, 8–20(–25) cm.

0.7–4 mm, little, if any, clavate thickening in fruit.

13–15.5 mm;

calyx campanulate, 5.1–6.6 mm, strigulose-pilosulous, tube 3.8–4.9 mm, lobes subulate, 1–1.9 mm;

corolla white or cream, drying ochroleucous, immaculate;

banner recurved through 45–90°;

keel 10.2–11.8(–12.5) mm.

whitish, greenish white, cream, ochroleucous, pink, or purple with pale wing apices, banner 40–90°, keel apex usually round or narrowly triangular, sometimes sharply deltate or beaklike.

tubes short-cylindric or campanulate.

erect, greenish stramineous, straight, linear-oblong or narrowly oblong-ellipsoid, obtusely 3-sided, lateral face convex, dorsal face scarcely narrower, grooved or not, 14–24(–28) × 2.7–4.5 mm, ± bilocular, firm and scarcely fleshy becoming leathery, glabrous or strigulose;

septum 0.8–1.7 mm wide;

stipe (2.5–)3–6 mm.

persistent, sessile or stipitate, usually erect or incurved-ascending, rarely deflexed, ovoid, oblong-ovoid to ellipsoid, or linear-oblong or -oblanceoloid, obcompressed or dorsiventrally or 3-sided compressed or subterete, unilocular or ± bilocular.

20–29.

14–36.

basifixed or malpighian.

distinct.

= 22.