Flora of North America species comparison

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

decumbent to ascending, 2–15+ cm underground, strigulose or 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.

(2–)3–15 cm;

stip-ules connate-sheating at proximal nodes, loosely amplexicaul at distal nodes, 1.5–8 mm, herbaceous becoming papery;

leaflets (11–)15–25(or 27), blades ovate, elliptic, or oblong, (2–)6–20(–24) mm, apex retuse or rounded, surfaces strigulose.

appearing subumbellate, loosely 5–11-flowered;

axis 1–5 cm in fruit;

bracts (1.5–)2.5–3.8 mm;

bracteoles 0.

densely 5–17(–23)-flowered;

axis 0.5–5(–7) cm in fruit, elongating little after flowering;

bracts 1–2.5 mm;

bracteoles 0.

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

erect or incurved-ascending, 3–15(–17) cm, longer or shorter than leaves, peduncle and raceme usually shorter than stem.

1.5–5 mm.

0.5–2.3 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–)7.4–13.6(–14.8) mm;

calyx campanulate to subcylindric, 3.2–6.6 mm, strigulose, tube 2–4 mm, lobes subulate, 0.9–2.8(–3) mm;

corolla pink-purple, blue-purple, or white;

banner abruptly incurved through 75–90°;

keel 0.5–2.2 mm, ± longer than wings and subequal to banner.

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-stramineous, straight or slightly incurved, sulcate abaxially, oblong-lanceoloid, 3-sided compressed, (6–)7–14 × 2.5–4.2 mm, thin becoming papery-membranous, strigulose or villosulous, partial septum inflexed 0.2–0.8 mm, semibilocular;

stipe 1.4–3 mm.

6–10.

5–11.

= 16.