Flora of North America species comparison

erect or stiffly ascending, stout, with 5–10 well-developed internodes, pilose and tomentulose.

erect or ascending, glabrate to densely strigulose.

(9–)13–35 cm;

stipules distinct 6–17 mm, herbaceous;

leaflet blades broadly to narrowly elliptic, ovate, oblong-elliptic, or rhombic-elliptic, (7–)10–55 mm, apex acute or abruptly short-acuminate, often callous-apiculate, surfaces pilose and tomentulose.

2.5–12 cm;

stipules connate-sheathing and papery-membranous at proximal nodes, distinct and herbaceous at distal nodes, 2–5 mm;

leaflets (5–)9–23, blades linear to narrowly elliptic or oblong, 3–25(–30) mm, apex obtuse to truncate, retuse, or subacute, surfaces usually glabrous, sometimes strigose.

(15–)20–55(–65)-flowered;

axis (3–)5–20(–24) cm in fruit;

bracts 2–6 mm;

bracteoles 0.

(4–)6–30-flowered, 1 per leaf axil;

axis 4–22 cm in fruit;

bracts 1–3.5 mm;

bracteoles 0.

erect, (8–)10–27 cm, together with racemes shorter than stems.

erect or ascending, 4.5–22 cm.

(1.2–)1.5–9 mm.

1.5–6 mm.

(14.4–)15.5–22 mm;

calyx (7.8–)10–14.7 mm, silky-pilose or tomentulose, tube (6–)7–8.7 mm, lobes lanceolate-acuminate or linear-lanceolate, 3–6.5 mm;

corolla immaculate;

keel (11.5–)12–15.1 mm.

10–14.3(–15) mm;

calyx subcylindric to campanulate, 4–7.7 mm, strigulose, hairs black and white, tube 3.3–6.4 × 2.4–3.5(–4.4) mm, lobes triangular, 0.5–1.5 mm;

corolla whitish to ochroleucous, keel immaculate or bright yellow;

banner recurved through 50–85°;

keel abruptly incurved through 95–120°, blades about as long as claws, (6.7–)7.6–10(–12) mm, apex deltate or triangular.

stiffly erect, becoming brownish stramineous then blackish, 15–25 × 8–13 mm, fleshy becoming leathery, glabrous.

pale green, not mottled, not stramineous, straight, oblong to ellipsoid, strongly laterally compressed, 17–30(–35) × (3–)3.5–6.5 mm, papery, glabrous or strigulose;

stipe 6–16 mm.

11–22.

= 22.

= 22, 24.