Flora of North America species comparison

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

decumbent to ascending or erect, diffuse, 3–10(–17) cm underground, appressed-hairy or villosulous.

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–)3–11 cm;

stipules connate-sheathing and papery at proximal nodes, ± distinct or connate to 1/2 their length and herbaceous becoming papery at distal nodes, 2–6 mm;

leaflets 7–27, blades broadly to narrowly elliptic, oblong-lanceolate, obovate-cuneate, or linear-oblong, 3–16 mm, apex truncate-emarginate or obtuse, surfaces strigulose abaxially, sparsely hairy adaxially.

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

axis (2–)2.5–12(–17) cm in fruit;

bracts 1–3 mm.

5–19(–27)-flowered, flowers ascending;

axis (0.5–)1.5–6.5 cm in fruit;

bracts 1.5–6 mm;

bracteoles (0 or) 2.

erect, 2.5–13 cm.

ascending, usually stout and ± straight, 2–8(–11.5) cm.

0.8–4(–4.8) mm.

1–2.9 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.

13.4–21 mm;

calyx campanulate or cylindric-campanulate, 6–10.6 mm, villosulous, tube 4.9–8 mm, lobes subulate to triangular, 1.1–2.8 mm;

corolla bright pink-purple or pale and lilac-tinged;

banner recurved through 45°;

keel 10.4–14 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.

spreading to declined, green, sometimes red-mottled, becoming brown or stramineous, straight or nearly so, oblong or ovoid-ellipsoid, turgid or somewhat inflated, not bladdery, 15–24 × (4.5–)5–9.5 mm, leathery, sparsely strigulose to villosulous;

sessile or subsessile.

42–71(–76).

25–36.