Flora of North America species comparison

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

single or few, decumbent-ascending, glabrous or sparsely strigose.

(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.

4.5–11 cm;

stipules 5–10 mm, papery at proximal nodes;

leaflets 11–21(or 23), blades obovate-cuneate, ovate, broadly oblong-elliptic, or suborbiculate, 5–20 mm, apex obtuse or emarginate, surfaces glabrous or glabrate and glaucescent.

appearing subumbellate, loosely 5–11-flowered;

axis 1–5 cm in fruit;

bracts (1.5–)2.5–3.8 mm;

bracteoles 0.

10–25-flowered, flowers declined;

axis 3–12 cm in fruit;

bracts 3–6 mm;

bracteoles 2.

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

incurved-ascending, 3–8.5 cm.

1.5–5 mm.

0.6–2 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.

12–15 mm;

calyx short-cylindric, 5.9–7.6 mm, strigulose, tube 4.5–5.6 mm, lobes subulate, 1.3–2.5 mm;

corolla reddish purple with white or lilac wing tips;

keel 9.5–10.6 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.

spreading-ascending (humistrate), green suffused or dotted red becoming stramineous, straight to incurved, oblong or broadly oblong-ovoid, obcompressed, 15–37 × 8–21 mm, ± bilocular, fleshy becoming papery, stiffly leathery, or subligneous, glabrous;

septum to 3.5 mm wide;

stipe 5–8 mm.

6–10.

(27–)30–36.

= 16.