Flora of North America species comparison

single or few, decumbent-ascending, glabrous or sparsely strigose.

erect or ascending, strigulose.

4.5–11 cm;

stipules 5–10 mm, papery at proximal nodes;

leaflets 11–21(or 23), blades obovate-cuneate, ovate, broadly oblong-elliptic, or suborbiculate, 5–20 mm, apex obtuse or emarginate, surfaces glabrous or glabrate and glaucescent.

4–15 cm;

stipules connate-sheathing at proximal nodes, connate or distinct at distal nodes, 3–8(–12) mm, scarious;

leaflets (9 or)11–31, blades lanceolate-elliptic to linear-lanceolate, 3–35 mm, apex acute to acuminate, surfaces glabrous or glabrate, sometimes ciliate.

10–25-flowered, flowers declined;

axis 3–12 cm in fruit;

bracts 3–6 mm;

bracteoles 2.

9–45(–70)-flowered;

axis (3–)5–20(–25) cm in fruit;

bracts 1.5–7.5(–9) mm;

bracteoles 0–2.

incurved-ascending, 3–8.5 cm.

erect, 3–13 cm.

0.6–2 mm.

2–8 mm.

12–15 mm;

calyx short-cylindric, 5.9–7.6 mm, strigulose, tube 4.5–5.6 mm, lobes subulate, 1.3–2.5 mm;

corolla reddish purple with white or lilac wing tips;

keel 9.5–10.6 mm.

12–19(–21) mm;

calyx pallid or pinkish, short-cylindric, strongly gibbous, (7.3–)8.6–12(–19) mm, glabrous or sparsely strigose, tube (4.7–)5–6(–9) mm, lobes subulate or subulate-setaceous, (1.5–)3.3–6(–10) mm;

corolla usually white or ochroleucous, concolorous, rarely lightly suffused with purple or with purple veins, sometimes keel tip lilac;

banner recurved through 45°;

keel 10.8–15.2 mm.

spreading-ascending (humistrate), green suffused or dotted red becoming stramineous, straight to incurved, oblong or broadly oblong-ovoid, obcompressed, 15–37 × 8–21 mm, ± bilocular, fleshy becoming papery, stiffly leathery, or subligneous, glabrous;

septum to 3.5 mm wide;

stipe 5–8 mm.

stramineous, straight or slightly curved, linear-oblong, oblong-ellipsoid, or oblong-ovoid, sharply 3-sided compressed, faces of subequal width, nearly flat, 10–30 × 3–8 mm, papery, glabrous or sparsely strigose;

stipe (3.5–)4–6(–7) mm.

(27–)30–36.

12–22.