Flora of North America species comparison

erect or ascending, sparsely strigulose.

usually several to many.

(3–)4–12 cm;

stipules connate and scarious-papery at proximal nodes, distinct and herbaceous at distal nodes, 1.5–5 mm;

leaflets (17–)21–29, blades flat or loosely folded, oblong-oblanceolate or elliptic, 3–13 mm, apex obtuse to subacute, surfaces sparsely strigulose abaxially, glabrate or glabrous adaxially.

odd-pinnate, subsessile to petiolate;

leaflets (7 or)9–29[–41].

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

sometimes subumbellate, loosely or remotely flowered, flowers declined, sometimes initially ascending or spreading.

(2–)4–11 cm.

0.6–1.5 mm.

5.8–8 mm;

calyx marcescent, 3.4–4.3 mm, strigulose, hairs black and/or white, tube 2.1–2.7 mm, lobes subulate, 1–2 mm;

corolla whitish or, sometimes, greenish ochroleucous, immaculate;

banner abruptly incurved through 90°;

keel 4.2–5.6 mm.

whitish or ochroleucous, sometimes tinged lilac or lavender [purple], banner recurved through 45–100°, often equal to or shorter than wings, keel apex blunt, triangular, or slightly beaklike.

tubes campanulate or turbinate-campanulate.

stramineous, straight or slightly incurved or decurved, linear-oblong or linear-oblanceolate, 3-sided compressed, 15–30 × (2.5–)3–4 mm, bilocular, papery, glabrous;

valves inflexed as complete septum 1.4–1.9 mm wide;

stipe 1.5–2.5 mm.

persistent, stipitate or sessile, pendulous, broadly to narrowly oblong-ellipsoid or ellipsoid to clavate-ellipsoid, compressed dorsiventrally or ± 3-sided compressed, ± bilocular [unilocular].

12–16.

6–18.

basifixed.

connate or distinct at distal nodes.