Flora of North America species comparison

glabrous in age;

pith spongy, soon becoming obsolete.

glabrous in age;

pith spongy.

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.

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.

5–15+-flowered, racemes.

1–12-flowered, racemes.

(1.1–)2.1–2.4(–3.3) cm.

(0.9–)1.7–1.8(–3) 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).

(0.9–)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.

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.

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.

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

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

= 12.

= 12.