Flora of North America species comparison

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

erect, 1–8 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.

2–13 cm;

stipules distinct throughout, 1–9(–10) mm, stiff-papery at proximal nodes, herbaceous becoming papery at distal nodes;

leaflets (1 or)3–9(or 11), blades linear to narrowly oblanceolate, 2–36 × 0.5–4 mm, apex obtuse to acute, surfaces usually strigose, sometimes glabrous adaxially;

terminal leaflet decurrent distally, not jointed to rachis.

appearing subumbellate, loosely 5–11-flowered;

axis 1–5 cm in fruit;

bracts (1.5–)2.5–3.8 mm;

bracteoles 0.

7–40+-flowered, flowers spreading-declined;

axis 3.5–45 cm in fruit;

bracts 0.8–2.5 mm;

bracteoles 0.

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

erect or incurved-ascending, 6–24 cm.

1.5–5 mm.

1.3–4.5 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.

13–20 mm;

calyx brown, cylindric-gibbous, 5.8–10.3 mm, strigose, tube 5–8 mm, lobes subulate, 0.6–2.5 mm;

corolla ochroleucous to nearly white, concolorous;

banner recurved through 50°;

keel 10.5–14 mm, apex bluntly or sharply deltate.

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.

pendulous, often brownish, straight or slightly curved, ellipsoid to oblong, dorsiventrally compressed, convex, 22–50 × 3.3–6.2(–7.5) mm, stiffly papery, faces smooth or cross-reticulate, strigose or glabrous;

stipe 3–15 mm.

6–10.

12–26.

= 16.

= 22.