Flora of North America species comparison

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

prostrate to weakly ascending, often flexuous, (1–)2–10(–15) cm underground, strigulose-villosulous or hirsutulous, hairs stiff, straight, spreading or subretrorse.

(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.

1.5–8.5 cm;

stipules connate-sheathing and papery at proximal nodes, obscurely connate or distinct and herbaceous or foliaceous at distal nodes, 1.5–6.5 mm;

leaflets 9–23, blades oblong to oblanceolate or obovate, 2–16 mm, apex obtuse, emarginate, or retuse, surfaces villosulous abaxially, villosulous or glabrate adaxially.

appearing subumbellate, loosely 5–11-flowered;

axis 1–5 cm in fruit;

bracts (1.5–)2.5–3.8 mm;

bracteoles 0.

5–37-flowered, flowers ascending to declined;

axis 1–7 cm in fruit;

bracts 1–3 mm;

bracteoles 0 or 1.

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

incurved-ascending or divaricate, 1.5–10 cm.

1.5–5 mm.

0.5–2.5 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.

6–11 mm;

calyx campanulate, 3.4–6.3 mm, villosulous, tube 2.3–3.6 mm, lobes subulate, 0.9–2.9 mm;

corolla ochroleucous, fading yellowish, and usually suffused with purple;

banner recurved through 45°;

keel (5.7–)6–7.7 mm, apex broadly 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 purplish, brightly red-mottled, straight, ovoid, ovoid-ellipsoid, ellipsoid, or cylindroid-ellipsoid, bladdery-inflated or turgid, subterete to dorsiventrally compressed, 12–27 × 3.5–13 mm, papery or papery-membranous, sparsely villosulous;

stipe 0.3–1 mm.

6–10.

10–20.

= 16.