Flora of North America species comparison

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

ascending, diffusely spreading, densely gray-villosulous.

(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.

1.2–3.5 cm;

stipules connate-sheathing at proximal nodes, distinct at distal nodes, to 7 mm, submembranous proximally, firm or herbaceous distally;

leaflets 7–15, blades narrowly obovate or elliptic, 2–10 mm, apex obtuse to subacute, surfaces villosulous 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.

5–10-flowered, flowers declined;

axis 0.4–1.6 cm in fruit;

bracts 1.5–3 mm;

bracteoles 0.

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

incurved-ascending, 0.4–1.6 cm.

1.5–5 mm.

1–1.8 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.

6.2–7 mm;

calyx campanulate, 3.6–4.5 mm, white-villosulous, tube 2.2–2.9 mm, lobes subulate, 1.3–2.3 mm;

corolla ivory-yellow, drying yellowish;

banner recurved through 50°;

keel 4–4.9 mm, apex deltate, obscurely beaklike.

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.

declined, stramineous, straight, symmetrically or subsymmetrically lenticular-oblong, 3-sided compressed, 5–8.5 × 2.5–3 mm, thin becoming papery, villosulous.

6–10.

6–10.

= 16.