Flora of North America species comparison

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

ascending and radiating, to 6(–9) cm underground, 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.

5–10 cm;

stipules connate-sheathing at proximal nodes, distinct at distal nodes, (3–)5–11 mm, membranous; petiolate;

leaflets 19–27, blades elliptic or elliptic-obovate, 7–16 mm, apex shallowly emarginate, surfaces sparsely strigose abaxially, glabrous or glabrescent adaxially.

10–25-flowered, flowers declined;

axis 3–12 cm in fruit;

bracts 3–6 mm;

bracteoles 2.

10–16-flowered, flowers ascending to spreading;

axis 1–2 cm in fruit;

bracts 6–10 mm;

bracteoles 2.

incurved-ascending, 3–8.5 cm.

ascending, 4.5–7.5 cm.

0.6–2 mm.

2–2.5 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.

17–19 mm;

calyx purplish, short-cylindric, 9–10.5 mm, sparsely pilosulous, tube 7–8.5 mm, lobes subulate, 2 mm;

corolla bright pink-purple;

keel 13–14 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.

pale green or reddish becoming stramineous suffused with brown-purple, straight, globose to plumply oblong-ellipsoid, terete or slightly dorsiventrally compressed, 14–26 × 12–16 mm, bilocular, somewhat fleshy, glabrous;

valves differentiated into double envelope separated by air space 1.5–2 mm wide.

(27–)30–36.

26–28.