Flora of North America species comparison

8–30+ cm;

stipules 0.9–1.1 cm, with inconspicuous inner fold 2/3 its length, inner fold and base often with stipitate, multicellular glands or glabrous;

pulvinus as long as petiole;

rachis ± glabrous, without stipitate glands, obscure gland sometimes present at petiolule base;

stipels absent;

leaflets 16–50+, blades elliptic-ovate to oblong, base acute, apex rounded-obtuse, surfaces usually glabrous.

1–6+-flowered, racemes.

(3.7–)6.4–7.4(–12.2) cm.

(8–)8.4–9(–9.7) cm;

calyx ± zygomorphic, ± persistent in fruit, lobes 5, short-acuminate, rim of tube glabrous, stalked glands sometimes present between lobes;

corolla yellow-orange, banner base with bright yellow spot, wings and keel usually darker;

banner ovate, base truncate, apex emarginate, calluses absent or as relatively small teeth at claw base, thickened, knoblike at base of blade/top of claw;

wings with basal tooth;

keel apex ± darker, acute, curved upward to slightly inward, without basal tooth;

stamens incurved within keel;

style recurved;

ovules 1–3.

tan-brown, often with horizontal mottling in age, flattened-inflated, flat to elliptic in cross section, straight, (4.5–)6.1–6.7(–8.2) × (1.1–)1.2–1.3(–1.6) cm, beak gradually tapered, flattened, (0.4–)0.5–0.6(–0.7) cm, tardily dehiscent;

stipe (0.8–)1.1–1.2(–1.5) cm.

1 or 2(or 3), gray-brown to reddish, without mottling, reniform, not easily released, enveloped in indehiscent, papery endocarp.

= 12.