Flora of North America species comparison

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

few or single, prostrate, 2–10 cm underground, densely 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.

1–3(–4.5) cm;

stipules connate at proximal nodes, distinct at distal nodes, 1–2.5 mm, scarious at proximal nodes, herbaceous at distal nodes;

leaflets 9–13, blades obovate, cuneate-obovate, or oblanceolate, 3–9(–14) mm, apex obtuse or retuse to obcordate, surfaces ashy-strigose.

appearing subumbellate, loosely 5–11-flowered;

axis 1–5 cm in fruit;

bracts (1.5–)2.5–3.8 mm;

bracteoles 0.

(4–)6–10(–13)-flowered, flowers spreading;

axis 0.5–1.5(–2) cm in fruit;

bracts 0.6–1.5 mm;

bracteoles 0.

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

spreading or incurved, (0.3–)0.5–2.2 cm.

1.5–5 mm.

1–2 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.

6.4–8.3 mm;

calyx (2.8–)4.1–5 mm, strigulose, tube 1.9–2.7 mm, lobes subulate, (0.9–)1.5–2.3 mm;

corolla dull stramineous, banner veins lilac, keel tip maculate;

keel 8.8–8.3 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 or ascending (humistrate), green or purplish becoming stramineous, straight, ovoid or ellipsoid, bladdery-inflated, somewhat dorsiventrally compressed, 20–35 × 12–26 mm, bilocular, thin becoming papery, sparsely strigulose.

6–10.

25–32.

= 16.