Flora of North America species comparison

ascending, decumbent, or sprawling, silky-strigose, villous, or villous-tomentose.

erect or ascending, sparsely strigulose.

(1–)2–7(–10) cm;

stipules clasping with margins touching but distinct or shortly connate at proximal nodes, distinct at distal nodes, (1–)2–7(–11) mm, often veined, semileathery;

leaflet blades linear, lanceolate, oblong, elliptic, or elliptic-oblanceolate, 3–33(–35) mm, apex acute, subacute, or obtuse, surfaces glabrous, glabrate, or pubescent.

1.5–5 cm;

stipules 1–2.5 mm, submembranous becoming papery;

leaflets 5–9, blades cuneate-obovate to narrowly cuneate, 2–10 mm, apex retuse, surfaces sparsely strigulose abaxially, glabrous adaxially.

densely or loosely 6–40-flowered;

axis 1.5–15 cm in fruit, elongating little after flowering;

bracts 1.2–5 mm;

bracteoles 0.

2–7-flowered, flowers spreading to declined;

axis 0.2–1(–1.3) cm in fruit, scarcely elongating;

bracts 0.7–1.2 mm;

bracteoles 0.

usually erect, rarely humistrate in fruit, (2–)2.5–15 cm, equal to or longer than subtending leaf, together with racemes usually shorter than stems.

ascending becoming declined or divaricate, 2–7 cm.

0.8–2.2 mm 1.2–3.5 mm in fruit.

0.4–2.2 mm.

7–13.8(–14.5) mm;

calyx 3.7–6.4 mm, villous or strigulose, tube 2.4–5 mm, lobes subulate, (1–)1.1–4 mm;

corolla white to purplish or creamy white;

wing apex bidentate;

keel (6.1–)6.7–9.6 mm, shorter than wings.

8.9–12 mm;

calyx 2.8–4 mm, strigulose, tube 2.1–2.6 mm, lobes triangular to subulate, 0.6–1.4 mm;

corolla whitish, banner and keel tips purple;

banner recurved through 20°;

keel 7.4–9.1 mm, apex round.

green, often with red or purple, becoming stramineous, ± straight or slightly curved abaxially, convex adaxially, not sulcate, obliquely ellipsoid, semi-ellipsoid, or narrowly oblong, laterally compressed, 10–30 × 3–9(–11) mm, papery, translucent, usually glabrous, sometimes strigose, hyaline septum 0–0.6 mm wide;

stipe 2.5–8[–10] mm.

horizontal or declined, green or faintly brown-mottled becoming brownish, incurved, crescentic and linear, obscurely 3-sided compressed, falling before splitting, dehiscent on ground, 17–25 × (1.6–)2–3.1 mm, thinly fleshy becoming stiffly papery, base and apex acuminate, strigulose; bearing seeds near middle;

gynophore pseudostipitate, slender, 1.4–2.5 mm.

8–16.

6–12.

= 22.