Flora of North America species comparison

12–19 cm;

stipules 0.2–0.4 cm, with inconspicuous inner fold throughout, inner fold and base with stipitate, multicellular glands or glabrous;

pulvinus less than 1/2 as long as petiole;

rachis ± glabrous, without stipitate glands in canal;

stipels narrow obscure glands;

leaflets 16–50+, blades elliptic-ovate to oblong, base acute, apex obtuse, surfaces glaucous, usually glabrous abaxially, sometimes with diffuse, close-pressed hairs.

8–43+ cm;

stipules 0.8–0.9 cm, with conspicuous inner fold throughout, inner fold often with velutinous, stipitate glands, glands absent at base;

pulvinus at least 1/2 as long as petiole;

rachis glabrescent or glabrous, with stipitate glands at base of leaflets in canal (not between leaflet pairs);

stipels long, narrow, glandular;

leaflets 10–20–50+, blades ligulate to elliptic-oblong, base obtuse to acute, apex emarginate to truncate, surfaces usually glabrous, sometimes with close-pressed, golden hairs.

1–12-flowered, racemes.

1–12+-flowered, racemes or panicles.

(0.9–)1.7–1.8(–3) cm.

(1.2–)1.9–2.3(–3.1) cm.

(0.9–)1.3–1.5(–1.7) cm;

calyx ± zygo-morphic, deciduous before fruits mature, lobes 5, short-deltate, rim of tube with spreading hairs, stalked glands usually present between abaxial lobes;

corolla pale yellow;

banner ovate, base truncate-obcordate, apex emarginate, calluses as relatively small ridges at claw base, forming a pocket, thickened, knoblike at top of claw;

wings without basal tooth;

keel ± same color throughout, apex rounded-obtuse, curved upward to slightly outward in apical tooth, without basal tooth;

stamens curved upward;

style curved upward with stamens;

ovules 4–9.

(5.1–)6.3–7(–7.9) cm;

calyx zygomorphic, ± bilabiate, lobes 0 or 5, rounded or obsolete, rim often with sinuous hairs from inner surface, with short, straight, close-pressed hairs on outer surface near teeth, stalked glands absent from rim, absent in fruit;

corolla white or red-crimson;

banner oblong, base truncate to cordate, apex emarginate, calluses as shallow ridges along claw;

wings without basal tooth;

keel ± same color throughout or claw white and blade pink or scarlet, apex acute-rounded, curved upward to slightly inward, with basal tooth;

stamens curved upward within keel;

style curved upward with keel;

ovules 27–48.

light tan to reddish brown, 4-angled, with pronounced torulose wings, square in cross section, straight, (3.2–)5.7–6.2(–9.3) × 0.8(–0.9) mm, seed chambers clearly visible externally, beak short- to long-pyramidal, (0.4–)0.7–0.8(–1.3) cm, indehiscent or tardily dehiscent;

stipe (1.1–)1.6(–2) cm.

brown-tan, without mottling, flattened parallel to sutures, rectangular in cross section, straight to falcate, (35.1–)38.7–43.8(–49.7) × (0.5–)0.7–0.8(–0.9) cm, beak gradually tapered, flattened, (0.6–)1–1.7(–2) cm, tardily dehiscent;

stipe (4.3–)4.4–4.5(–4.6) cm.

(1–)3 or 4(–9), dark reddish brown, without mottling, reniform-orbicular.

(27–)35–40(–46), yellow-green or brown to reddish, without mottling, reniform-orbicular.

= 12.

= 12.