Flora of North America species comparison

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

weak, reclining or scrambling through low shrubs, 1–4 cm underground, 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.

2.5–5 cm;

stipules 2–3.5(–5) mm, papery at proximal nodes, herbaceous at distal nodes;

leaflet blades linear, linear-oblong, or lanceolate to subfiliform, 3–15(–20) mm, apex acute to obtuse, surfaces strigulose.

appearing subumbellate, loosely 5–11-flowered;

axis 1–5 cm in fruit;

bracts (1.5–)2.5–3.8 mm;

bracteoles 0.

5–15-flowered;

axis 1.5–7 cm in fruit;

bracts 1.3–2 mm;

bracteoles 1 or 2.

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

divaricate and incurved-ascending, 3–8 cm.

1.5–5 mm.

0.7–2.2 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.

(6.5–)7–10 mm;

calyx (3.6–)4–5.6 mm, strigose, tube 2.5–3.8 mm, lobes subulate, (1.1–)1.7–2.2 mm;

corolla keel 6.4–8.5 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.

reddish or green and red-mottled, becoming brown, 16–23 × 3.5–5 mm, leathery or stiffly papery, glabrous;

septum 3–4.5 mm wide;

stipe 3–5 mm.

6–10.

= 16.