Flora of North America species comparison

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

usually 3–10, decumbent to ascending, 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.

2–5(–6) cm;

stipules distinct, 1.5–4 mm, papery at proximal nodes, herbaceous or submembranous at distal nodes;

leaflets (5 or)7–13, blades oblong-obovate, -ovate, or obovate-cuneate, (2–)3–12 mm, apex obtuse, truncate, or retuse, surfaces glabrous.

appearing subumbellate, loosely 5–11-flowered;

axis 1–5 cm in fruit;

bracts (1.5–)2.5–3.8 mm;

bracteoles 0.

(3–)7–15-flowered, flowers ascending becoming spreading, later declined;

axis (0.4–)1–3.5(–4.5) cm in fruit;

bracts 0.8–1.8 mm;

bracteoles 0.

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

divaricate, 1–4(–5.5) cm.

1.5–5 mm.

0.6–1.8 mm (in fruit).

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.

6.7–9.1 mm;

calyx campanulate, 3.5–4.5 mm, strigulose, tube 2–2.6 mm, lobes lanceolate-subulate, 1.3–1.9 mm;

corolla whitish, banner with lavender veins;

banner incurved through 45°;

keel 4.1–5.7 mm, apex obtuse, sometimes 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.

deflexed or declined, purplish green becoming stramineous then brownish, lunately incurved, usually obliquely linear-oblong, oblanceoloid, or semi-ellipsoid, rarely semi-ovoid, somewhat inflated, almost bladdery, usually ± 3-sided compressed, (10–)15–28 × 3–9 mm, unilocular or subunilocular, thin becoming papery-membranous, translucent, sparsely and minutely strigulose, hairs straight, appressed;

seed-bearing flange to 2.5 mm wide, septum 0.5–1 mm.

6–10.

(6–)8–14.

= 16.

= 28.