Flora of North America species comparison

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

decumbent to ascending, glabrous.

(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.

3–13 cm;

stipules 2–6.5 mm, submembranous becoming papery-scarious;

leaflets 13–25, blades elliptic to lanceolate-elliptic, oblanceolate, or obovate, 1–15 mm, apex obtuse to truncate-emarginate, surfaces glabrous.

(15–)20–55(–65)-flowered;

axis (3–)5–20(–24) cm in fruit;

bracts 2–6 mm;

bracteoles 0.

3–7-flowered, flowers ascending;

axis 0.5–3.5(–4) cm in fruit;

bracts 1.5–4.5 mm;

bracteoles 2.

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

erect or ascending, 2–10.5 cm.

(1.2–)1.5–9 mm.

1.5–3.5 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.

18–22 mm;

calyx purple, 10–12.2 mm, sparsely black-strigose, tube 8–9.5 mm, lobes subulate, 1.3–2.7 mm;

corolla pink-purple;

banner recurved through 45°;

keel 15.4–17.7 mm, apex round.

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

spreading to declined, pale green or red-tinged becoming stramineous, straight, oblong-ellipsoid, inflated, 14–26 × 7–14.5 mm, thinly fleshy becoming papery, usually glabrous, rarely minutely scabrid-pubescent;

unilocular;

stipe 1.5–4.5 mm.

20–38.

= 22.

= 24, 26.