Flora of North America species comparison

erect to ascending, strigulose.

erect to ascending, with 5–10 well-developed internodes, strigulose-pilosulous.

4–15(–18) cm;

stipules 2–4(–6) mm, papery-scarious at proximal nodes, subherbaceous at distal nodes;

leaflets 11–19(or 21), blades linear-oblong, narrowly oblong-oblanceolate, or obovate, 2–13 mm, apex obtuse, subtruncate, or shallowly retuse, surfaces strigose, sometimes glabrous adaxially.

7–13(–16) cm;

stipules 4–9 mm, papery at proximal nodes, membranous at distal nodes;

leaflets (13–)17–27, blades obovate, oblong, lanceolate-oblong, or broadly elliptic, 6–26 mm, apex retuse or obtuse, surfaces strigulose-pilosulous abaxially, glabrous adaxially.

(5–)8–15-flowered, flowers ascending;

axis (3–)5–18(–20) cm in fruit;

bracts 1.5–2.3 mm;

bracteoles 0.

(4–)7–22-flowered, flowers ascending-spreading;

axis (2–)3–8 cm in fruit;

bracts 1.5–3.5 mm;

bracteoles 2.

erect, 6–21(–24) cm.

erect, (4–)10–18 cm, together with racemes shorter than stems.

1–2.8 mm, little or no clavate thickening in fruit.

1–5 mm.

10.5–13.8 mm;

calyx campanulate, 4.8–6.3 mm, strigulose-pilosulous, tube 3.1–4.2 mm, lobes subulate, 1.2–2.1 mm;

corolla ochroleucous, keel tip tinged lilac;

banner recurved through 40°;

keel 8.5–9.6 mm.

15.5–22 mm;

calyx short-cylindric, 6.9–10.3 mm, pilosulous, tube 5.2–8 mm, lobes subulate, 1.6–2.8 mm;

corolla ochroleucous, keel immaculate;

banner recurved through 45°;

keel 11–13.1 mm.

erect, pale green or purplish becoming stramineous, straight, linear-oblong, 3-sided compressed, lateral face flat, dorsal face narrower and grooved, 15–30 × 2.7–4 mm, ± bilocular, thin becoming papery, glabrous;

septum 1–2 mm wide;

stipe 3.5–7 mm.

erect, brown-stramineous, straight or slightly incurved, obliquely ovoid or oblong-ovoid, somewhat dorsiventrally compressed, 13–18 × 4–6 mm, unilocular, fleshy becoming leathery or subligneous, glabrous;

sessile.

16–18.

14–18.