Flora of North America species comparison

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

decumbent to ascending, densely pilose to pilose-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.

(6–)8–15 cm;

stipules often connate-sheathing at proximal nodes, connate or distinct at distal nodes, 5–20 mm, submembranous becoming papery-scarious;

leaflet blades oblong-elliptic or obovate-obcordate, (4–)6–23 mm, apex obtuse, emarginate, or apiculate-acute, surfaces sparsely pilose or pilose-hirsute abaxially, glabrous adaxially.

appearing subumbellate, loosely 5–11-flowered;

axis 1–5 cm in fruit;

bracts (1.5–)2.5–3.8 mm;

bracteoles 0.

9–20-flowered;

axis 2–5(–6) cm in fruit;

bracts 5–12 mm;

bracteoles 0.

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

incurved-ascending, 5–10(–14) cm.

1.5–5 mm.

1.5–3.5 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.

14–19 mm;

calyx 8.3–15.1 mm, sparsely white-hirsute, tube gibbous-saccate behind pedicel, 5.9–11.4 mm, lobes lanceolate-subulate, 2.4–4 mm;

corolla whitish or pale cream, drying yellow, immaculate;

keel 11–13.6 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.

green or pink-tinged becoming stramineous, 25–40 × 7–13 mm, fleshy becoming spongy, walls 2.5–3 mm thick, translucent, alveolate-rugulose, sparsely hirsute;

gynophore stout, (1–)1.3–2 mm, glabrous.

6–10.

= 16.