Flora of North America species comparison

ascending or decumbent, 1–9 cm underground, sparsely strigulose.

prostrate to decumbent, (0–)2–9(–12) cm underground, strigose-strigulose, villous-hirsute, or villosulous.

(2–)3.5–18 cm;

stipules distinct, 3–10 mm, submembranous, glabrous abaxially; petiolate or subsessile;

leaflets (11–)15–33, blades oblanceolate, oblong-oblanceolate, obovate, suborbiculate, or broadly oval to linear-elliptic, (2–)3–24 mm, apex obtuse, acute, subacute, or truncate-emarginate, sometimes apiculate, surfaces pubescent abaxially, glabrous or glabrescent adaxially.

1–4.5(–5.5) cm;

stipules usually connate-sheathing at proximal nodes, sometimes distinct throughout, 1–4.5(–5) mm, papery-scarious at proximal nodes, thinly herbaceous at distal nodes;

leaflets (3–)7–13, blades oblanceolate- or obovate-cuneate, 2–12 mm, apex retuse or truncate and apiculate, surfaces villous abaxially, sparsely so adaxially.

(5–)6–25(–35)-flowered, flowers ascending or slightly arched;

axis 1–7(–14) cm in fruit;

bracts 2.5–7.5 mm;

bracteoles 0–2.

(2 or)3–13-flowered, flowers spreading;

axis (0.2–)0.4–1.2 cm in fruit;

bracts 0.8–2.4 mm;

bracteoles 0.

ascending to spreading, (1.5–)2–16 cm.

incurved-ascending, 0.4–2.5 cm.

2–7.5 mm.

0.7–1.8 mm, disjointing in age.

(16–)16.5–25(–27) mm;

calyx usually broadly or deeply campanulate or cylindro-campanulate, rarely cylindric, (6.6–)7.7–14 mm, densely strigulose, pilosulous, ascending-pilose, or villosulous-tomentulose, tube (5.2–)5.6–9.7 mm, lobes subulate or triangular-subulate, (1.3–)1.7–4.2(–5.8) mm;

corolla pink-purple, red-purple, white, whitish (faintly lilac-tinged), lilac, ochroleucous, or suffused pinkish lilac;

keel (10.7–)12–20.7 mm.

(5.2–)6–8.5 mm;

calyx shallowly campanulate, 3.2–5.8(–6.2) mm, villous or villosulous, tube 1.3–2.6 mm, lobes linear-lanceolate or setaceous, (1–)1.4–3.6 mm;

corolla whitish or yellowish, banner and keel tips with lilac veins;

banner abruptly recurved through 90–100°;

keel 3.4–5.3 mm, apex bluntly triangular, obscurely beaklike.

green, often red-mottled or suffused with red on adaxial surface, becoming brown or blackish, straight, globose, subglobose, broadly and plumply oblong-ellipsoid, oblong-ovoid, or oblong-obovoid, ± obcompressed, 15–40 × 12–27 mm, fleshy becoming alveolate-spongy or pithy, wrinkled on drying, mesocarp at least 1.2 mm thick, glabrous.

spreading or declined (often humistrate), pale green or minutely purple-dotted becoming stramineous, straight or slightly incurved, semi-ovoid or ovoid-ellipsoid, bladdery-inflated, somewhat dorsiventrally compressed, 8–20 × (5–)6–11(–13) mm, unilocular or subunilocular, papery-membranous, sparsely long-villous or villosulous.

34–77.

(3–)5–9.