Flora of North America species comparison

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

spreading to ascending and diffuse, with well-developed internodes, sparsely strigulose.

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–)4.5–10.5 cm;

stipules connate-sheathing at proximal nodes, distinct at distal nodes, 1.5–6 mm, papery-scarious;

leaflets (7–)15–25, blades linear-oblong, -oblanceolate, or filiform, 1–11 mm, apex obtuse or subacute, surfaces strigulose abaxially, glabrous adaxially;

terminal leaflet sometimes decurrent distally, not jointed to rachis.

7–17-flowered, flowers ascending to spreading;

axis 0.5–4.5 cm in fruit;

bracts 1–3 mm;

bracteoles 2.

(5–)8–20-flowered;

axis (2–)3–10 cm in fruit;

bracts 0.7–2 mm;

bracteoles 0–2.

ascending or incurved, 1–4.5 cm.

(0.5–)1.5–7 cm.

0.3–2 mm.

0.7–2 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.

6–8.2 mm;

calyx 2.5–5 mm, strigulose, tube (1.5–)1.8–3 mm, lobes subulate, 0.8–2 mm;

corolla usually white or whitish, rarely yellow, drying yellowish, banner sometimes brownish-striate;

banner abruptly recurved through (50–)85–100°;

keel 4.7–5.7 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.

pendulous, stramineous, slightly incurved, lunately semi-ellipsoid, 3-sided compressed, 9–16 × 3–4.5 mm, papery, finely strigulose;

septum 1.3–2 mm wide;

stipe 3–5 mm.

14–30.

11–16.