Flora of North America species comparison

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

decumbent, tips ascending, 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.

(1.5–)3–7 cm;

stipules connate at proximal nodes, connate to 1/2 their length at distal nodes, 1.5–4 mm, membranous becoming papery;

leaflets 9–19, blades oblong-obovate, elliptic, or linear-oblong, 2–10 mm, apex obtuse or emarginate, surfaces pubescent abaxially, glabrate adaxially.

(15–)20–55(–65)-flowered;

axis (3–)5–20(–24) cm in fruit;

bracts 2–6 mm;

bracteoles 0.

(5–)7–25-flowered;

axis 1.5–9 cm in fruit;

bracts 0.5–1.5 mm;

bracteoles 0.

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

incurved-ascending, 3–10 cm.

(1.2–)1.5–9 mm.

0.5–1.5 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.

5.2–7.7 mm;

calyx marcescent, 3.5–4.7 mm, strigulose, hairs white, sometimes also black, tube 2–3.2 mm, lobes subulate, 1–1.6 mm;

corolla whitish tinged with dull lilac;

banner recurved through 65–90°;

keel 5–6.5 mm.

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

persisting and dehiscent on plant, green, sometimes also purple, becoming stramineous, strongly curved downward, linear-oblong or linear-ellipsoid, bluntly 3-sided compressed, 13–25 × 2.3–3 mm, incompletely bilocular, papery, finely strigulose;

valves inflexed as nearly complete septum 0.7–1.5 mm wide;

stipe 0–0.7 mm.

12–18.

= 22.

= 22.