Flora of North America species comparison

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

straggling to ascending or erect, mostly branched near base, 1.5–8+ cm underground, 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.

2–10 cm;

stipules distinct throughout, 3–8 mm, papery-membranous at proximal nodes, firm at distal nodes;

leaflets 5–15, blades linear, oblong, or narrowly oblanceolate, 3–20 mm, apex obtuse to retuse, surfaces strigose or, sometimes, glabrate adaxially;

terminal leaflet decurrent distally, not jointed to rachis.

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

axis (2–)2.5–12(–17) cm in fruit;

bracts 1–3 mm.

5–22-flowered, flowers ascending, finally nodding;

axis 2.5–13 cm in fruit;

bracts 0.7–2 mm;

bracteoles 0.

erect, 2.5–13 cm.

erect or incurved-ascending, 3–10.5 cm.

0.8–4(–4.8) mm.

0.8–2.2 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.

8.5–12.5 mm;

calyx usually dull purple, campanulate, 3.5–5.5 mm, strigulose, tube 3–4.3 mm, lobes triangular, 0.4–1.5 mm;

corolla pink-purple, wing tips white;

banner recurved through 90–95°;

keel 8–9.8 mm, apex obtuse to subacute, not beaklike.

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, pale green or purplish becoming stramineous, straight or gently decurved, oblong to narrowly oblanceoloid, dorsiventrally compressed in proximal 1/2, laterally compressed distally, 20–35 × 3.3–6 mm, stiffly papery, strigose;

sessile.

42–71(–76).

21–31.