Flora of North America species comparison

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

erect, 3–10 cm underground, cinereous.

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–)1.5–5 cm;

stipules 0.5–2.5 mm, papery-scarious at proximal nodes, herbaceous at distal nodes;

leaflets (7–)11–21, blades narrowly or broadly obovate, 1–7 mm, apex retuse or obcordate, surfaces strigose, sometimes adaxially glabrescent.

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

axis (2–)2.5–12(–17) cm in fruit;

bracts 1–3 mm.

5–14+-flowered;

axis 1–5 cm in fruit;

bracts 0.5–1 mm;

bracteoles 0.

erect, 2.5–13 cm.

divaricate, often hanging below subtending leaf, 1–3.5 cm.

0.8–4(–4.8) mm.

1–2 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.

7–8.2 mm;

calyx 2.5–3 mm, villosulous, tube 2–2.5 mm, not marcescent, lobes triangular, 0.5–0.7 mm;

corolla pale lilac, or whitish to yellowish and veined and suffused with lilac, keel tip maculate;

keel 4.6–5.3 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.

pendulous, stramineous, strongly curved or coiled through (1–)1.5–2 spirals, narrowly oblong, 3–4 mm wide, papery, villosulous;

stipe 2–9 mm.

42–71(–76).

10–16.