Flora of North America species comparison

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

decumbent to ascending, 3–13 cm underground, 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.

1.5–8.5 cm;

stipules connate-sheathing and stiff-papery at proximal nodes, connate or distinct at distal nodes, 3–9 mm;

leaflet blades oblong to elliptic or oblanceolate, some narrowly so, 2–19 mm, apex acute to obtuse or mucronate, surfaces sparsely strigose or glabrous abaxially, glabrous adaxially.

appearing subumbellate, loosely 5–11-flowered;

axis 1–5 cm in fruit;

bracts (1.5–)2.5–3.8 mm;

bracteoles 0.

4–22-flowered;

axis 1–7 cm in fruit;

bracts 1.5–7 mm;

bracteoles 0–2.

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

erect or incurved-ascending, 2–14 cm, shorter or much longer than leaves.

1.5–5 mm.

1–4 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.

18–24 mm;

calyx 9–11.5(–14) mm, strigulose, tube 6.5–8.5 mm, lobes subulate, 1.5–4(–6) mm;

corolla concolorous or keel faintly purplish;

keel 13.6–15.4 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.

green, sometimes also purple, becoming brown, incurved to nearly straight, sulcate abaxially, 18–35 × 3–6.5 mm, papery, glabrous;

valves inflexed as complete septum 2–4 mm wide;

stipe 4–9 mm.

6–10.

= 16.

= 22.