Flora of North America species comparison

clustered, decumbent to ascending or straggling, often conspicuously flexuous, diffuse, strigulose.

erect or ascending, strigulose, canescent, cinereous, or greenish cinereous.

(3–)5–13 cm;

stipules 1.5–5 mm, papery at proximal nodes, subherbaceous at distal nodes;

leaflets (5 or)7–17, blades linear, linear-oblanceolate, or narrowly oblong, 3–23 mm, apex obtuse or retuse, surfaces strigulose or, sometimes, glabrescent or glabrous adaxially.

dimorphic, some unifoliolate distally and reduced to phyllodia, continuous with rachis, 2–10 cm;

stipules distinct throughout, 1–7 mm, papery at proximal nodes, herbaceous at distal nodes;

leaflets (1 or)3–19, blades linear, oblong, cuneate-oblong, or ovate, (3–)4–20 mm, apex acute, obtuse, truncate or retuse, surfaces strigose;

terminal leaflet decurrent distally, not jointed to rachis.

(3–)7–21-flowered;

axis (1–)2.5–6.5 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

(2–)5–30-flowered, flowers spreading-declined;

axis 3–20 cm in fruit;

bracts 0.5–3.2 mm;

bracteoles 0.

4–9.5 cm.

erect or incurved-ascending, (4–)6.5–30 cm.

1–2.5 mm.

0.8–2.5 mm.

13–16.3 mm;

calyx 5.9–8 mm, strigulose, hairs white, black, and brown, tube 5.3–7 mm, not swollen or gibbous proximally, marcescent, lobes triangular, 0.5–1.3 mm;

corolla whitish, banner and wing tips tinged with lilac, keel maculate;

keel 10–12.1 mm.

12–19 mm;

calyx purplish, cylindric, 4.5–8 mm, strigose, tube 4–6.7 mm, lobes broadly subulate, 0.6–2.3 mm;

corolla pink-purple;

banner recurved through 35–50°;

keel 9–13 mm, apex bluntly or sharply deltate.

pendulous, brown-stramineous, ± straight to sigmoidally incurved through 0.5 spiral, lunately or falcately ellipsoid, subterete becoming laterally compressed, 20–35 × (5.5–)6.5–9 mm, stiffly leathery or subligneous, strigulose;

stipe 12–20 mm, arched downward from calyx, distally sigmoidal-incurved.

pendulous, green or reddish becoming stramineous, straight or gently decurved, oblong to oblanceoloid, strongly compressed, flattened laterally, 19–35 × (3–)3.5–6 mm, stiffly papery, glabrous;

stipe 4–11 mm.

30–36.

14–20.