Flora of North America species comparison

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

decumbent to erect, 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.

(6–)8–20(–24) cm;

stipules 3–8 mm, submembranous early becoming papery;

leaflets (9–)17–25, blades oblong, elliptic, rhombic-ovate, or rhombic-lanceolate to linear-elliptic, (7–)10–20(–28) mm, apex obtuse to subacute, surfaces strigulose abaxially, glabrous adaxially.

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

axis (2–)2.5–12(–17) cm in fruit;

bracts 1–3 mm.

(9–)15–30-flowered, flowers spreading to nodding;

axis (3–)5–17 cm in fruit;

bracts 2–4.5 mm;

bracteoles 2.

erect, 2.5–13 cm.

erect, 8–16 cm.

0.8–4(–4.8) mm.

1.5–5 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.

18.5–20.5 mm;

calyx short-cylindric, 9.6–12.2 mm, strigulose, tube 7–9 mm, lobes triangular to subulate, (1–)2–3.2 mm;

corolla ochroleucous, immaculate;

banner recurved through 50°;

keel 13–15 mm.

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.

erect, green, sometimes suffused or speckled with purple, becoming stramineous, straight or nearly so, subsymmetrically oblong- or ovoid-ellipsoid, moderately inflated, obcompressed, both sutures grooved, 11–22 × (4.5–)6.5–10 mm, base truncate, ± bilocular, fleshy becoming leathery, glabrous;

septum 1.4–1.8 mm wide;

stipe 12–18 mm.

42–71(–76).

21–32.