Flora of North America species comparison

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

single or few, prostrate-ascending, 3.5–14 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.

3–14 cm;

stipules connate-sheathing at proximal nodes, connate or distinct at distal nodes, 2–6 mm, membranous;

leaflets 7–15(–19), blades obovate, 4–15 mm, apex round to emarginate, surfaces strigose, sometimes glabrous adaxially.

10–25-flowered, flowers declined;

axis 3–12 cm in fruit;

bracts 3–6 mm;

bracteoles 2.

5–20-flowered;

axis 1.2–13 cm in fruit;

bracts 1.5–3 mm;

bracteoles 2.

incurved-ascending, 3–8.5 cm.

erect, 0.5–9.5 cm.

0.6–2 mm.

1–3 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.

13.5–22 mm;

calyx 4.8–7.5 mm, black-strigose, tube 4.2–6 mm, lobes broadly triangular, 0.5–1.5 mm;

corolla ochroleucous, or pink-purple with white wing tips;

banner recurved through 30°;

keel 9–12.2 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.

ascending-erect, green and purple-dotted becoming purple-stramineous, straight or slightly decurved, ovoid to subglobose, terete, inflated, 12–20 × 8–11 mm, thin becoming papery, glabrous or glabrate;

stipe 9–19 mm.

(27–)30–36.