Flora of North America species comparison

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

decumbent, 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.

1.5–4 cm;

stipules 1–1.5 mm, herbaceous becoming papery;

leaflets 11 or 13, blades obovate, 2–4.5 mm, apex obtuse, 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.

8–18-flowered, flowers ascending;

axis 1–2.5 cm in fruit;

bracts 1.3–2.5 mm;

bracteoles 0.

erect, 2.5–13 cm.

prostrate and radiating in fruit, 5–7 cm.

0.8–4(–4.8) mm.

1.5 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.

7.5–8 mm;

calyx 6 mm, strigulose-villosulous, tube 3 mm, lobes subulate, 2.8 mm;

corolla pink-purple or bluish lavender;

banner recurved through 45°;

keel 5.8–6.2 mm, apex bluntly deltate.

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.

disjointing from receptacle when mature, ascending, stramineous, slightly incurved, narrowly lanceoloid, 3-sided compressed, 7–9 × 2–2.5 mm, thin becoming stiffly papery, loosely strigulose.

42–71(–76).

6.