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, to 8 cm, internodes often 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.

1–12 cm;

stipules connate-sheathing at proximal nodes, connate or distinct at distal nodes, 1.5–7 mm, submembranous becoming papery-scarious;

leaflets (3–)7–17, blades elliptic to oblanceolate or obovate, 2–13 mm, apex acute to obtuse, surfaces strigose abaxially, strigose or glabrate adaxially.

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

axis (2–)2.5–12(–17) cm in fruit;

bracts 1–3 mm.

3–16(–18)-flowered, flowers ascending to declined;

axis 0.4–13 cm in fruit;

bracts (1–)1.5–5 mm;

bracteoles 0–2.

erect, 2.5–13 cm.

erect and ascending, 0.5–13 cm.

0.8–4(–4.8) mm.

0.5–1.4(–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.

6–9 mm;

calyx campanulate, 3.5–6 mm, strigose-pilose, tube 2.5–4.2 mm, lobes subulate, 0.8–2.6 mm;

corolla pink-purple or bicolored;

keel 5.9–12.5 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, ± straight or lunately to very strongly incurved through 0.75(–1) spiral, obliquely ovoid to lanceoloid-ellipsoid, dorsiventrally compressed, 6–19 × 3–6 mm, unilocular, papery-membranous, hirsute, hairs lustrous;

sessile, gynophore 0–1.2 mm.

42–71(–76).

16–28.