Flora of North America species comparison

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

several, decumbent or sprawling to erect, (1–)2–6(–8) cm underground, 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.

4–16 cm;

stipules strongly decurrent, 3–11 mm, papery at proximal nodes, subherbaceous at distal nodes;

leaflets (5–)11–23, blades ovate to oblong, obovate, or oblanceolate, 6–24 mm, apex obtuse to retuse, surfaces strigose to sparsely so abaxially, strigose or glabrous adaxially.

7–17-flowered, flowers ascending to spreading;

axis 0.5–4.5 cm in fruit;

bracts 1–3 mm;

bracteoles 2.

10–30-flowered, flowers ascending to declined;

axis 3–14 cm in fruit;

bracts 2–6 mm;

bracteoles 0–2.

ascending or incurved, 1–4.5 cm.

incurved-ascending, subhorizontal in fruit, 2.5–13(–24) cm.

0.3–2 mm.

1–3.5 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.

(11–)13–17 mm;

calyx short-cylindric, 5.2–7.8 mm, black-pilosulous, tube 4.5–6.5 mm, lobes subulate, 1.2–2.5 mm;

corolla purplish to pink-purple, wing tips pale to white;

keel 10.5–10.8 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.

firmly attached to receptacle, falling while still attached to pedicel, ascending to descending (sometimes humistrate), green and red-tinged becoming brownish, incurved 0.5 spiral, narrowly oblong, subterete, laterally compressed when pressed, sides convex, elliptic in cross section, dorsal suture forming a prominent ridge, 15–32 × 4–7(–8) mm, bilocular, thick becoming leathery, strigose to strigulose;

stipe 0.5–2 mm.

14–30.

24–36.