Flora of North America species comparison

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

decumbent, ascending, prostrate, or diffuse, 1–13 cm underground, villosulous or loosely strigose.

(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.

2–9 cm;

stipules connate-sheathing and scarious at proximal nodes, distinct or connate by a low collar and subherbaceous at distal nodes, 1–7 mm;

leaflets (11 or)13–27(–31), blades obovate to oblanceolate or elliptic, (1.5–)3–14(–15) mm, apex retuse, truncate, or obtuse, surfaces strigulose abaxially, sparsely hairy or glabrous adaxially.

appearing subumbellate, loosely 5–11-flowered;

axis 1–5 cm in fruit;

bracts (1.5–)2.5–3.8 mm;

bracteoles 0.

(7–)9–28-flowered, flowers spreading-declined;

axis 1–7 cm in fruit;

bracts 1.5–5 mm;

bracteoles 0–2.

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

suberect, incurved-ascending, spreading, declined, or prostrate, 3–9.5(–11) cm.

1.5–5 mm.

1.2–4 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.

12.4–15(–18.5) mm;

calyx campanulate, (5–)6–7(–9) mm, strigulose or villosulous, tube 5–6.2 mm, lobes triangular-subulate, 0.5–2.3 mm;

corolla purple or reddish violet, sometimes white-tipped or suffused with purple;

banner recurved through 45°;

keel 9–12(–12.3) 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.

spreading to declined, green or purplish becoming stramineous or brown, straight or slightly incurved, oblong, oblanceoloid-ellipsoid, ovoid, obovoid, or ellipsoid, slightly to distinctly inflated, (12–)13–27 × (3–)4–12 mm, cartilaginous becoming stiffly papery, somewhat fleshy opaque, glabrous, strigulose, or villosulous;

stipe (0–)1–4.5 mm.

6–10.

20–34.

= 16.