Flora of North America species comparison

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.

10.5–22.3 cm;

stipules 0.6 cm, golden tan-sericeous, with conspicuous inner fold 3/4 its length, base of fold unlike other Sesbania with additional shorter fold that parallels long one, inner fold without stipitate, multicellular glands, glands often present at base;

pulvinus more than 1/2 as long as petiole;

rachis sericeous, with stipitate glands in canal;

stipels long, narrow, ± glandular;

leaflets 34–96+, blades elliptic-ovate to broadly linear, base obtuse to acute, apex truncate to rounded obtuse, surfaces sericeous, hairs dense, golden tan abaxially, usually glabrous adaxially.

1–12+-flowered, racemes or panicles.

1–18+-flowered, racemes.

(1.2–)1.9–2.3(–3.1) cm.

(0.2–)0.5–0.6(–1.5) cm.

(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.

(0.7–)0.8–0.9(–1.9) cm;

calyx actinomorphic, lobes 5, deltate-acuminate, rim of tube with net of long hairs, stalked glands present at base of sinus, absent in fruit;

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

banner ovate, base broadly tapered, apex emarginate, calluses as ridges along claw, callus apices truncate;

wings without basal tooth;

keel same color throughout, similar to wings, apex ± truncate, curved upward to inward towards calyx, with basal tooth;

stamens curved inward within keel;

style recurved towards banner;

ovules 18–32.

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.

reddish brown, with horizontal mottling, narrow-elongate, terete to elliptic in cross section, straight to falcate, (1.7–)10–12.7(–18.8) × (0.2–)0.3(–0.4) cm, beak connate, narrowly tapered, 0.2(–0.4) cm, tardily elastic dehiscent;

stipe (0.1–)0.2(–0.3) cm.

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

(3–)19–24(–32), greenish gray to brownish red, without mottling, columnar.

= 12.

= 12, 24.