Flora of North America species comparison

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

indistinctly flexuous (if at all), spreading to prostrate, sparsely 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.

(3–)5–12 cm;

stipules connate-sheathing and papery-membranous at proximal nodes, distinct and herbaceous at distal nodes, 1.5–5 mm;

leaflets 5–11, blades linear, linear-oblanceolate, -elliptic, or filiform, (2–)5–25 mm, apex acute to subacute, surfaces strigulose;

terminal leaflet sometimes 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.

(3–)5–15(–22)-flowered, 1 per leaf axil;

axis (1.5–)2–10 cm in fruit;

bracts 1–2.5 mm;

bracteoles 0–2.

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

divaricate and incurved, (2–)4–20 cm.

1.5–5 mm.

0.6–1.5 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.

9.4–12.2 mm;

calyx subcylindric to campanulate, 3.5–5 mm, strigulose, hairs black and white, tube 3–4 × 2.3–2.8(–3.1) mm, lobes triangular, 0.6–1 mm;

corolla pinkish red, with darker red veins, keel and wings buff-yellow, banner white-tipped;

banner recurved through 35–45°;

keel incurved through 40–85°, blades longer than claws, 8.2–10 mm, apex obtuse and beaklike.

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.

brown or stramineous, sometimes initially mottled, straight or slightly curved, linear-oblong or linear-lanceoloid, strongly laterally compressed, 15–35 × 3–4 mm, thinly fleshy becoming leathery, strigulose or if glabrous then mottled;

stipe (4–)6–14 mm.

6–10.

13–17.

= 16.