Flora of North America species comparison

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

forming rounded, birds-nestlike clumps, ascending to erect, many-branched, 3–14+ cm underground, strigose.

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.

1.5–7 cm;

stipules sometimes connate-sheathing at proximal nodes, mostly distinct, 1–6 mm, papery-membranous at proximal nodes, herbaceous at distal nodes;

leaflets 5–11(or 13), blades linear or oblong, 2–20(–25) mm, apex obtuse to emarginate or acute, surfaces pubescent or adaxially glabrous;

terminal leaflet of distal leaves decurrent and 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.

(3–)8–33-flowered, flowers ascending to declined;

axis 1.5–28 cm in fruit;

bracts 1.2–2.2 mm;

bracteoles 0–2.

ascending or incurved, 1–4.5 cm.

erect or incurved-ascending, 4–16(–28) cm.

0.3–2 mm.

1.2–3 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.

(9–)10–15 mm;

calyx campanulate, (3.5–)3.8–7 mm, black-strigose, tube (3–)3.3–5.5 mm, lobes subulate, (0.5–)1–2.2 mm;

corolla pink-purple;

banner recurved through 30–45°;

keel (7.5–)8.4–10.3 mm, apex obtuse to subacute, not 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.

pendulous, green or purple-tinged becoming brownish stramineous, straight or gently decurved, narrowly oblong, dorsiventrally compressed, 20–32 × 3.5–4.5 mm, thinly fleshy becoming stiffly papery, strigose;

stipe (2.5–)3.5–6 mm.

14–30.

(16–)20–26.