Flora of North America species comparison

decumbent and ascending, sometimes fistulose, sparsely strigulose or glabrous.

erect to ascending, with 2–5(or 6) developed internodes, strigulose.

(5–)8–20 cm;

stipules mostly distinct, (2–)4–10 mm, papery at proximal nodes, herbaceous at distal nodes;

sessile or subsessile to short-petiolate;

leaflets 25–41, blades narrowly oblong, ovate-cuneate, or rhombic-ovate, (3–)6–30(–37) mm, apex truncate, emarginate and apiculate, or subacute, surfaces sparsely strigulose or glabrous abaxially, glabrous adaxially.

(5–)10–21 cm;

stipules 2.5–7 mm, membranous becoming papery-scarious;

leaflets 21–33, blades linear-oblong, linear-oblanceolate, or narrowly lanceolate-oblong, 2–21 mm, apex obtuse or truncate-emarginate to subacute, surfaces strigulose abaxially, glabrous adaxially.

(10–)20–45-flowered, flowers horizontal or declined;

axis 3.5–9 cm in fruit;

bracts 1.5–3.5 mm;

bracteoles 0.

(8–)12–21-flowered, flowers spreading;

axis 4–12(–18) cm in fruit;

bracts 1.2–7.5 mm;

bracteoles 2.

erect or incurved-ascending, 5.5–14 cm.

erect, 14–30 cm, together with racemes much longer than stems.

0.6–3.5 mm.

0.7–5 mm.

11.1–15.3 mm;

calyx broadly campanulate, obliquely truncate or subgibbous abaxially, 5–7.2(–7.7) mm, strigulose, tube 3.5–4.8(–5) mm, lobes subulate or triangular-subulate, (1–)1.3–2.6(–3) mm;

corolla white, greenish white, or ochroleucous;

keel 9.4–13.2 mm.

11.2–14.1(–17) mm;

calyx short-cylindric, (6.9–)7.6–10.6 mm, strigulose, tube 4.6–5.8 mm, lobes lanceolate-subulate, (1.9–)2.2–5.2 mm;

corolla greenish white, drying yellowish, immaculate;

banner recurved through 45°, apex crinkled, 10.5–14 mm;

wings 12.8–17 mm, longer than banner;

keel (9.4–)10.2–12.8 mm.

readily deciduous, horizontal or ascending, pale green or purplish stramineous, obliquely ovoid or semi-ovoid, bladdery-inflated, (18–)23–45(–50) × (10–)12–20 mm, thin becoming papery, translucent, sublustrous, sparsely strigulose or glabrate;

sessile.

erect, brown or stramineous, straight or slightly incurved, obliquely oblong-ellipsoid or narrowly ovoid-ellipsoid, obcompressed, 15–25 × (5.5–)6.5–10 mm, unilocular, fleshy becoming leathery, glabrous;

septum to 0.6 mm wide;

sessile.

34–55.

23–28.

= 22.

= 24.