Flora of North America species comparison

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

prostrate to ascending, silvery-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–)1.5–4(–5.5) cm;

stipules 1.8–3.5 mm, submembranous;

leaflets (5 or)7 or 9, blades obovate, oblong-oval, or rhombic-obovate, 2–11 mm, apex subacute, obtuse, or emarginate, surfaces silvery-strigulose, appearing frosted.

appearing subumbellate, loosely 5–11-flowered;

axis 1–5 cm in fruit;

bracts (1.5–)2.5–3.8 mm;

bracteoles 0.

5–14-flowered, flowers spreading to declined;

axis 2.5–4.5(–8) cm in fruit;

bracts 0.8–1.5 mm;

bracteoles 0.

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

ascending, 1.5–4.5(–8) cm.

1.5–5 mm.

0.8–2.5 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.

7.3–9.5 mm;

calyx 3.9–4.5 mm, strigulose, tube 2.2–2.7 mm, lobes subulate, 1.4–2.3 mm;

corolla pink-purple;

banner recurved through 40°;

keel 7–8.4 mm, apex bluntly 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.

spreading to declined, green or purple-tinged becoming stramineous or brownish, incurved through 0.25–0.5 spiral, narrowly lunate-oblanceoloid, 3-sided compressed, 13–18 × 2.8–3.5 mm, thinly papery, strigulose;

gynophore slender, 0.5–0.9 mm.

6–10.

8–11.

= 16.