Flora of North America species comparison

10–30+ cm;

stipules 1–1.1 mm, with inner fold throughout, inner fold and base with stipitate, multicellular glands;

pulvinus at least 1/2 as long as petiole;

rachis glabrous, with stipitate glands in canal at base of each leaflet pair;

stipels narrow, ± glandular;

leaflets 20–80+, blades rectangular to oblong, base obtuse, apex truncate to obtuse, surfaces usually glabrous.

1–18+-flowered, racemes.

(0.2–)1.6–1.9(–4.2) cm.

(1–)1.4–1.5(–1.9) cm;

calyx actinomorphic, lobes 5, subulate–acuminate, rim of tube glabrous or with short hairs inside, stalked glands absent;

corolla yellow-orange, banner with purple-maroon spots on outer surface;

banner ovate to obovate, base truncate, apex obtuse-retuse, calluses as shallow ridges or winglike along claw, callus apices truncate to rounded with lobes less than 2 mm;

wings with basal tooth (short, blunt);

keel yellow, apex purple or maroon, rounded-acute, curved upward to inward towards banner, with basal tooth;

stamens strongly curved inward within keel;

style recurved towards banner;

ovules (12–)29–36(–51).

brown, with maroon-red mottling, narrow-elongate, terete to elliptic in cross section, straight to falcate, (8.3–)16.9–19.4(–23.5) × 0.3(–0.4) cm, beak connate, narrowly tapered, (0.3–)0.6–0.8(–1.1) cm, tardily elastic dehiscent;

stipe (0.2–)0.5(–0.7) mm.

(12–)29–36(–51), green-brown to reddish, often with purple-black mottling, columnar.