Flora of North America species comparison

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

prostrate, when developed, 0–2.5 cm, mostly obscured by stipules, 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.

1.5–9 cm;

stipules connate-sheathing at proximal nodes, connate or distinct at distal nodes, 2–5 cm, membranous;

leaflets 5–17, blades elliptic, oblanceolate, or obovate, 3–12 mm, apex acute to obtuse, surfaces strigose.

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

axis (2–)2.5–12(–17) cm in fruit;

bracts 1–3 mm.

4–13-flowered, flowers ascending or spreading;

axis 1.5–8 cm in fruit;

bracts 2–4.5 mm;

bracteoles 0.

erect, 2.5–13 cm.

erect, 2–9 cm.

0.8–4(–4.8) mm.

0.5–2 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.

12–16 mm;

calyx cylindric, 6–8.5 mm, strigose, tube 4.5–6 mm, lobes subulate, 1.2–2.5 mm;

corolla purplish;

keel 9.5–12.5 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.

declined to deflexed, green, usually red-mottled or -spotted, becoming stramineous, lunately incurved, obliquely ovoid or lanceoloid-ellipsoid, dorsiventrally compressed, 10–14 × 3.5–6.5 mm, unilocular or subunilocular, thickly papery, hirsute, hairs lustrous;

sessile, gynophore 0.3–0.8 mm.

42–71(–76).

20.