Flora of North America species comparison

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

decumbent, tips ascending, 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–)3–7 cm;

stipules connate at proximal nodes, connate to 1/2 their length at distal nodes, 1.5–4 mm, membranous becoming papery;

leaflets 9–19, blades oblong-obovate, elliptic, or linear-oblong, 2–10 mm, apex obtuse or emarginate, surfaces pubescent abaxially, glabrate adaxially.

appearing subumbellate, loosely 5–11-flowered;

axis 1–5 cm in fruit;

bracts (1.5–)2.5–3.8 mm;

bracteoles 0.

(5–)7–25-flowered;

axis 1.5–9 cm in fruit;

bracts 0.5–1.5 mm;

bracteoles 0.

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

incurved-ascending, 3–10 cm.

1.5–5 mm.

0.5–1.5 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.

5.2–7.7 mm;

calyx marcescent, 3.5–4.7 mm, strigulose, hairs white, sometimes also black, tube 2–3.2 mm, lobes subulate, 1–1.6 mm;

corolla whitish tinged with dull lilac;

banner recurved through 65–90°;

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.

persisting and dehiscent on plant, green, sometimes also purple, becoming stramineous, strongly curved downward, linear-oblong or linear-ellipsoid, bluntly 3-sided compressed, 13–25 × 2.3–3 mm, incompletely bilocular, papery, finely strigulose;

valves inflexed as nearly complete septum 0.7–1.5 mm wide;

stipe 0–0.7 mm.

6–10.

12–18.

= 16.

= 22.