Flora of North America species comparison

erect or ascending, (0–)1–12+ cm underground, villous.

obsolete, ascending, or prostrate, radiating from root-crown, to 3 cm, internodes mostly obscured by leaf bases, silky-strigose to strigulose.

(2–)3–12 cm;

stipules distinct, subterranean ones often fully amplexicaul but distinct, 7–15 mm, foliose at distal nodes;

leaflets (5–)7–13(–15), blades elliptic, oblong or lanceolate-elliptic, 10–30(–35) mm, pinnately veined, apex obtuse to rounded, surfaces sparsely villosulous or villous abaxially, glabrous adaxially.

(1.5–)2.5–10 cm;

stipules 3–7 mm, submembranous;

leaflets 7–13, blades obovate-cuneate or elliptic-oblanceolate, 3–12 mm, apex obtuse or subacute, surfaces strigulose.

appearing subumbellate, loosely 5–11-flowered;

axis 1–5 cm in fruit;

bracts (1.5–)2.5–3.8 mm;

bracteoles 0.

2–10-flowered, flowers ascending;

axis 0.1–1.5 cm in fruit;

bracts 1.5–5.5 mm;

bracteoles 0(–2), exceptionally conspicuous.

erect, 3–9.8 cm, usually longer than subtending leaf.

ascending, 0.5–3(–5) cm.

1.5–5 mm.

13–19 mm;

calyx campanulate to subcylindric, 7.5–8.8 mm, villosulous, tube 6.3–8 mm, lobes broadly triangular, 0.6–0.8 mm;

corolla yellowish with whitish margins, banner sometimes purple bordered white, keel 13.2–16 mm.

(14.5–)15–18.5 mm;

calyx cylindric or vase-shaped, 6–10.5 mm, strigulose, hairs black or white, tube 6.5–8 mm, lobes subulate, 1.3–2.5 mm;

corolla white, whitish, or ochroleucous;

banner recurved through 40°;

keel 8.3–14.3 mm.

green becoming brown, ± straight, ovoid, inflated, 15–21 × 5.5–8 mm, papery-membranous, black-pilose, hairs to 0.5 mm;

stipe 5–7 mm, pubescent.

spreading-ascending (humistrate), green or purplish becoming brownish or stramineous, scarcely to moderately incurved, obliquely ovoid, lanceolate-ovoid, or lunately ellipsoid, obcompressed becoming laterally compressed distally, 9–20(–22) × 4–8 mm, unilocular, distinctly beaked, leathery, walls much less than 1 mm thick, densely strigulose.

6–10.

18–33.

= 16.