Flora of North America species comparison

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

sprawling, slender and delicate, forming entangled clumps, strigulose, green.

(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.

2.5–10 cm;

stipules connate-sheathing at proximal nodes, distinct at distal nodes, 2–5 mm, thinly herbaceous or submembranous;

leaflets (9–)15–23(–27), blades narrowly elliptic, lanceolate, or ovate, 3–15 mm, apex subacute or obtuse, surfaces sparsely strigulose abaxially, glabrate 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.

loosely (1 or)2 or 3(–5)-flowered;

axis 0.2–1 cm in fruit;

bracts 1.3–3.3 mm;

bracteoles 0–2.

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

ascending, 2–2.5 cm, shorter than leaves.

2–7.5 mm.

1.2–2.1 mm, 1.4–2.5 mm in fruit.

(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.

8.5–11.8 mm;

calyx campanulate to subcylindric, 4–5.7 mm, densely to sparsely strigulose, tube 2.7–3.4 mm, lobes subulate or lanceolate-subulate, 1.1–2.5 mm;

corollas white, keel apex maculate with dull bluish purple;

banner recurved through 45°;

keel 6–7.5 mm.

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.

stramineous, slightly decurved, oblong- or lanceoloid-ellipsoid, obcompressed and bluntly 3-sided, faces low-convex, 8–14 × 2.5–4 mm, papery, translucent, sparsely strigulose, hairs 1.8–2.1 mm, unilocular;

stipe 0–1.5 mm.

34–77.

6–10.