Flora of North America species comparison

erect or ascending, sparsely strigulose.

prostrate or ascending, 0–6 cm, internodes mostly concealed by stipules, densely to sparsely strigose.

(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.

1.2–8.5 cm;

stipules 2–7 mm, membranous;

leaflets 7–17, blades obovate to oblanceolate, 3–11 mm, apex obtuse to emarginate or acuminate to acute, surfaces strigose, hairs subappressed and silvery-silky.

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

2–10-flowered, flowers ascending;

axis 0.2–3.5 cm in fruit;

bracts 2–4.5 mm;

bracteoles 0–2.

(2–)4–11 cm.

incurved-ascending, 1–8 cm.

0.6–1.5 mm.

0.8–3 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.

17–24 mm;

calyx cylindric, 10–13.2 mm, pilosulous, tube 7.3–9.4 mm, lobes subulate, 2–3.5 mm;

corolla pink-purple, often pale;

banner recurved through 40°;

keel 17–19 mm, 2 mm shorter than banner.

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.

spreading-ascending (humistrate), sessile or subsessile, gently or abruptly incurved, ovoid-acuminate, obcompressed, 10–23 × 7–12 mm, unilocular, fleshy becoming stiffly leathery, densely shaggy-hirsute, hairs concealing surface, longest hairs 2–3.5 mm.

12–16.

27–36.