Flora of North America species comparison

erect or ascending, sparsely strigulose.

prostrate and radiating, 0–10 cm, internodes usually concealed by stipules, densely pannose-tomentose.

(3–)4–12 cm;

stipules connate and scarious-papery at proximal nodes, distinct and herbaceous at distal nodes, 1.5–5 mm;

leaflets (17–)21–29, blades flat or loosely folded, oblong-oblanceolate or elliptic, 3–13 mm, apex obtuse to subacute, surfaces sparsely strigulose abaxially, glabrate or glabrous adaxially.

1.5–12 cm;

stipules 3–10 mm, membranous;

leaflets 9–19, blades obovate or suborbiculate to ovate, 2–15 mm, apex usually obtuse to emarginate, sometimes acute, surfaces densely villous-tomentose.

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

2–8-flowered, flowers ascending;

axis 0.4–2.6 cm in fruit;

bracts 4–9 mm;

bracteoles 0–2.

(2–)4–11 cm.

ascending, decumbent in fruit, 1–14 cm.

0.6–1.5 mm.

2–4.3 mm.

5.8–8 mm;

calyx marcescent, 3.4–4.3 mm, strigulose, hairs black and/or white, tube 2.1–2.7 mm, lobes subulate, 1–2 mm;

corolla whitish or, sometimes, greenish ochroleucous, immaculate;

banner abruptly incurved through 90°;

keel 4.2–5.6 mm.

23–31 mm;

calyx cylindric, 12–14 mm, villous-tomentose, tube 8.5–13 mm, lobes lanceolate-subulate, 2–4.5 mm;

corolla usually pink-purple, rarely white;

banner recurved through 45°;

keel (16–)17–22 mm.

stramineous, straight or slightly incurved or decurved, linear-oblong or linear-oblanceolate, 3-sided compressed, 15–30 × (2.5–)3–4 mm, bilocular, papery, glabrous;

valves inflexed as complete septum 1.4–1.9 mm wide;

stipe 1.5–2.5 mm.

initially ascending (humistrate), color concealed by hairs, ± straight, lanceoloid-ellipsoid or narrowly ovoid-acuminate, obcompressed, 17–30 × 5.5–7.5 mm, unilocular, fleshy becoming stiffly papery or thinly leathery, shaggy-villous, hairs 4–8 mm, obscuring surface;

sessile and gynophore 1–2.5 mm.

12–16.

22–31.

= 22.