Flora of North America species comparison

prostrate to decumbent, finely cinereous, glabrous, or glabrate.

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

2–8 cm;

stipules 2–6 mm, membranous or thinly herbaceous;

leaflets (7 or)9–19(or 21), blades obovate to oblong or oblanceolate to elliptic, 3–18 mm, apex truncate to retuse, obtuse, or mucronate, surfaces sparsely strigose abaxially, usually glabrous 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.

7–17-flowered, flowers ascending to spreading;

axis 0.5–4.5 cm in fruit;

bracts 1–3 mm;

bracteoles 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 or incurved, 1–4.5 cm.

ascending, 2–2.5 cm, shorter than leaves.

0.3–2 mm.

1.2–2.1 mm, 1.4–2.5 mm in fruit.

9–15.5 mm;

calyx shortly cylindric, (3.3–)5–8 mm, strigose, tube 2.6–5 mm, lobes subulate, (0.6–)1–3 mm;

corolla usually purple, lilac, or whitish, rarely cream (concolorous), sometimes keel tips purple;

banner recurved through 45°;

keel 7.5–12 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.

disjointing from receptacle when mature, ascending to declined, green, often red-mottled, becoming stramineous or purplish, curved through 0.25–0.5+ spiral, obliquely lanceoloid, dorsiventrally or 3-sided compressed, (20–)25–40 × (2.5–)3–8.5 mm, unilocular to semibilocular, fleshy becoming leathery or stiffly papery, strigose;

sessile.

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.

14–30.

6–10.