Flora of North America species comparison

decumbent, trailing, erect, or ascending, mostly strigulose or villosulous, often glabrous or glabrate at proximal nodes.

prostrate or weakly ascending, silvery-strigulose.

5–16(–18) cm;

stipules distinct 1.5–6.5 mm, papery at proximal nodes, firm or submembranous at distal nodes;

leaflets (11 or)13–25, blades ovate, obovate, oblong-elliptic, elliptic, lanceolate-oblong, oblanceolate, or linear-oblong, 5–25(–30) mm, apex usually obtuse, retuse, or truncate and apiculate, rarely subacute, surfaces glabrous.

(2–)3–13(–16) cm;

stipules distinct, (1.5–)2–6.5 mm, submembranous;

leaflets (9 or)11–21, blades oblong, oblong-ovate or -obovate, or broadly to narrowly elliptic, (3–)5–25 mm, apex usually acute or obtuse and apiculate, rarely retuse-emarginate, surfaces sparsely strigulose abaxially, usually densely to sparsely strigulose adaxially, rarely glabrous or glabrescent.

(10–)12–30(–35)-flowered, flowers subhorizontal or ascending;

axis (2–)2.5–12(–17) cm in fruit;

bracts 1–3 mm.

(10–)20–40-flowered, flowers widely ascending or spreading;

axis (3.5–)4–21 cm in fruit;

bracts 0.8–2.6 mm;

bracteoles 2.

erect, 2.5–13 cm.

ascending or incurved, 4–13 cm.

0.8–4(–4.8) mm.

0.5–3(–3.4) mm.

(6.4–)7.8–13 mm;

calyx campanulate or ovoid-campanulate, 4–6.6 mm, strigulose, tube (2.5–)2.6–4.3 mm, lobes subulate, deltate, or triangular, 0.7–2.6 mm;

corolla ochroleucous, yellowish, or greenish white;

banner abruptly recurved through 60–90°, (6.4–)7.8–13 mm;

keel (6.2–)7.1–10.8 mm, apex narrowly deltate and triangular, subacute, somewhat beaklike.

7–10.3 mm;

calyx campanulate or ovoid-campanulate, 3.6–6.6 mm, strigulose, tube (2.2–)2.7–3.8 mm, lobes subulate or triangular-subulate, (0.9–)1–2.8 mm;

corolla bright pink-purple, or ochroleucous with purple tips or veins;

banner recurved through 90°, 7–10.3 mm;

keel 6.2–8.8 mm, apex round or narrowly triangular and beaklike.

spreading or ascending (sometimes humistrate), pale green, sometimes purple-tinged or -speckled, becoming stramineous, obliquely ovoid, semi-ovoid or semi-ellipsoid, bladdery-inflated, somewhat obcompressed, 25–60 × 12–32 mm, beak prominent, papery, ± lustrous, usually strigulose, rarely glabrescent.

ascending, spreading, or declined, pale green or purple-specked or -suffused becoming stramineous, straight or slightly incurved, obliquely ovoid-ellipsoid or ovoid-acuminate, moderately to strongly bladdery-inflated, ± dorsiventrally or laterally compressed, 9–23 × (4–)5–15(–17) mm, beak prominent, papery, sparsely to densely strigulose.

42–71(–76).

(7–)12–31.