Flora of North America species comparison

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

ascending (and somewhat sprawling from the root-crown) to erect, 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.

3.2–22 cm;

stipules 3–9 mm, membranous;

leaflets (1 or)3–13, blades elliptic to rhombic, 7–23(–45) mm, apex acute to mucronate, surfaces sparsely strigose or glabrous.

appearing subumbellate, loosely 5–11-flowered;

axis 1–5 cm in fruit;

bracts (1.5–)2.5–3.8 mm;

bracteoles 0.

7–20-flowered, flowers spreading;

axis 1–3 cm in fruit;

bracts 2–4.5 mm;

bracteoles 0.

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

incurved, 1.4–10 cm.

1.5–5 mm.

0.8–2.5 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.

17–19 mm;

calyx 6.7–10 mm, strigulose, tube 5.5–6.3 mm, lobes subulate, 1.8–3.1 mm;

corolla white, concolorous, drying white or ochroleucous;

banner recurved through 40–50°;

keel 13 mm, apex blunt.

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-declined, pallid-stramineous or brownish, straight or slightly incurved subcylindroid, inflated, 25–32(–38) × 10–15 mm, leathery, strigose;

unilocular;

sessile or subsessile.

6–10.

38–44.

= 16.