Flora of North America species comparison

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

decumbent, ascending, prostrate, or diffuse, 1–13 cm underground, villosulous or loosely strigose.

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.

2–9 cm;

stipules connate-sheathing and scarious at proximal nodes, distinct or connate by a low collar and subherbaceous at distal nodes, 1–7 mm;

leaflets (11 or)13–27(–31), blades obovate to oblanceolate or elliptic, (1.5–)3–14(–15) mm, apex retuse, truncate, or obtuse, surfaces strigulose abaxially, sparsely hairy or glabrous adaxially.

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

axis (2–)2.5–12(–17) cm in fruit;

bracts 1–3 mm.

(7–)9–28-flowered, flowers spreading-declined;

axis 1–7 cm in fruit;

bracts 1.5–5 mm;

bracteoles 0–2.

erect, 2.5–13 cm.

suberect, incurved-ascending, spreading, declined, or prostrate, 3–9.5(–11) cm.

0.8–4(–4.8) mm.

1.2–4 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.

12.4–15(–18.5) mm;

calyx campanulate, (5–)6–7(–9) mm, strigulose or villosulous, tube 5–6.2 mm, lobes triangular-subulate, 0.5–2.3 mm;

corolla purple or reddish violet, sometimes white-tipped or suffused with purple;

banner recurved through 45°;

keel 9–12(–12.3) 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.

spreading to declined, green or purplish becoming stramineous or brown, straight or slightly incurved, oblong, oblanceoloid-ellipsoid, ovoid, obovoid, or ellipsoid, slightly to distinctly inflated, (12–)13–27 × (3–)4–12 mm, cartilaginous becoming stiffly papery, somewhat fleshy opaque, glabrous, strigulose, or villosulous;

stipe (0–)1–4.5 mm.

42–71(–76).

20–34.