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.

10.5–22.3 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.

5–15+-flowered, racemes.

1–18+-flowered, racemes.

(1.1–)2.1–2.4(–3.3) cm.

(0.2–)0.5–0.6(–1.5) 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).

(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.

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.

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.

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

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

= 12.

= 12, 24.