Flora of North America species comparison

4.5–30+ cm;

stipules 0.4–0.5 cm, with inconspicuous inner fold 2/3 its length, inner fold and base often with stipitate, multicellular glands and long, simple hairs;

pulvinus less than 1/2 as long as petiole;

rachis ± appressed-pilose, with or without stipitate glands in canal, stipitate gland present at petiolule base;

stipels narrow, gland tipped;

leaflets 14–40, blades elliptic to oblong-obovate, base acute-obtuse, apex truncate to obtuse, surfaces glabrous or sparsely pubescent abaxially, usually glabrous adaxially.

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.

5–15+-flowered, racemes.

1–18+-flowered, racemes.

(1.1–)2.1–2.4(–3.3) cm.

(0.2–)1.6–1.9(–4.2) cm.

(1.8–)2–2.2(–2.5) cm;

calyx ± zygomorphic, usually absent at fruit maturity, lobes 5, short and broad, sinuses shallow, rim of tube glabrous, stalked glands absent;

corolla orange-grenadine-red;

banner ovate, base truncate, apex emarginate, calluses as relatively small, acute teeth at claw base;

wings without basal tooth;

keel ± same color throughout, apex rounded-obtuse, curved upward, without basal tooth;

stamens curved upward within keel;

style curved upward with stamens;

ovules 6 or 7(–10).

(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).

red-brown, with or without horizontal mottling, 4-angled, square in cross section, ± straight, with pronounced, spreading wings, torulose or not, (5.2–)8.8–9.5(–10.7) × (0.7–)0.8(–9) cm, seed compartments slightly pronounced externally in age, beak long-pyramidal to triangular, (0.5–)0.9–1(–1.4) cm, tardily dehiscent;

stipe (0.8–)1.1–1.2(–1.6) cm.

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.

(1–)6 or 7(–10), red-brown to gray, without mottling, globose to reniform-orbicular.

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

= 12.