Flora of North America species comparison

erect or ascending, sparsely strigulose.

diffuse or erect to decumbent-clambering, sparsely strigulose-pilosulous.

(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.

2–10 cm;

stipules (1–)2–11 mm, papery-scarious proximally, submembranous at distal nodes;

leaflets 13–23, blades narrowly elliptic to lanceolate-oblong, 4–18 mm, apex obtuse to retuse or acute, surfaces strigulose.

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

5–15-flowered, flowers ascending-erect;

axis 0.5–2.5 cm in fruit;

bracts 3–7 mm;

bracteoles 0.

(2–)4–11 cm.

erect or incurved-ascending, 1.5–15 cm.

0.6–1.5 mm.

0.5–1.5 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.

17–24 mm;

calyx cylindric, 7–12.5 mm, villous, tube 5–7.8 mm, lobes linear, 2.5–5.5 mm;

corolla usually pink-purple, sometimes ochroleucous or nearly white;

keel 11.4–14 mm.

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.

erect, green becoming dark, ± straight, oblong-ellipsoid, obtusely 3-sided, 7–10 × 2.8–4.5 mm, sulcate abaxially, scarcely swollen, thinly papery, densely silky-villous;

stipe 0.3–1 mm.

12–16.

= 16.