Flora of North America species comparison

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

prostrate, 3–12 cm, (0–)1–8 cm underground, pilosulous.

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.

1–3 cm;

stipules connate-sheathing and papery at proximal nodes, distinct and submembranous at distal nodes, 1–2.5 mm;

leaflets 7–19, blades oval to obovate, 1–5 mm, apex retuse, surfaces strigulose, sometimes glabrous adaxially.

7–17-flowered, flowers ascending to spreading;

axis 0.5–4.5 cm in fruit;

bracts 1–3 mm;

bracteoles 2.

2–6-flowered, flowers spreading;

axis 0.2–0.8 cm in fruit;

bracts 0.8–1.2 mm;

bracteoles 0.

ascending or incurved, 1–4.5 cm.

incurved-ascending, 0.3–2.2 cm.

0.3–2 mm.

1.4–2.5 mm.

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.

6.8–8.5 mm;

calyx purplish, campanulate, 3.5–4.2 mm, pilosulous, tube 2.3–3 mm, lobes subulate, 1–1.4 mm;

corolla whitish, faintly suffused with pink or purple;

banner abruptly recurved through 80°;

keel 4.8–5 mm, apex round or narrowly triangular and beaklike.

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.

ascending to declined, purple-mottled, ovoid, bladdery-inflated, 10–23 × 8–14 mm, thin, translucent, strigose;

gynophore 0.1–0.8 mm.

14–30.

18–20.