Flora of North America species comparison

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

decumbent or prostrate, sparsely strigulose, sometimes glabrous proximally.

(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–)4–10(–12) cm;

stipules (1.5–)2–8 mm, papery at proximal nodes;

leaflets (9–)13–25(or 27), blades firm, oval, obovate, elliptic-oblanceolate, or suborbiculate, (2–)3–11(–13) mm, veins not apparent, apex round, truncate, or retuse, surfaces sparsely strigose abaxially, glabrous adaxially.

(15–)20–55(–65)-flowered;

axis (3–)5–20(–24) cm in fruit;

bracts 2–6 mm;

bracteoles 0.

(5–)10–21-flowered;

axis 1.5–5(–7.5) cm in fruit;

bracts 0.8–1.4 mm;

bracteoles 0–2.

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

decumbent or prostrate, (2–)5–15 cm.

(1.2–)1.5–9 mm.

0.8–2.4 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.

8.2–15.5 mm;

calyx 3.1–6.3 mm, strigulose, tube 2.4–4 mm, lobes subulate, 1–2 mm;

corolla pink-purple, purplish, or whitish, fading yellowish, sometimes wing tips whitish, banner veins lilac, keel tip maculate;

banner recurved through 45°;

keel 5.5–9.3 mm, apex blunt.

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

usually ascending, rarely declined (humistrate), green becoming brown then blackish, incurved, narrowly lunate-ellipsoid to obliquely oblong-, ovoid-, or obovoid-ellipsoid, somewhat dorsiventrally compressed, 13–25 × 3.5–7 mm, subunilocular, thinly fleshy becoming leathery, not especially reticulate, glabrous;

gynophore 0.4–1.4 mm.

16–37.

= 22.