Flora of North America species comparison

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

prostrate-ascending, hirsute.

(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.

5–15 cm;

stipules 3–6 mm, herbaceous;

leaflet blades oblong-obovate or -ovate, 4–17 mm, apex retuse, surfaces hirsute.

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 scarcely elongating;

bracts 1.5–3 mm;

bracteoles 0.

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

1.5–4 cm.

1.5–5 mm.

0.6–1 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.

5–6.5 mm;

calyx 5–6.5 mm, densely white or white and black hairy, lobes filiform, 2–5 mm (longer than tube);

corolla keel 5–6.5 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.

blackish brown at maturity, coiled through 0.75–1.25 spiral into a ring, 6–8 mm diam., 2–3 mm wide, papery, grooved dorsally, sparsely hirsutulous.

6–10.

= 16.

= 16.