Flora of North America species comparison

prostrate to ascending, 0–11 cm, internodes often concealed by white-hairy stipules and dense white hairs, villous-tomentulose.

ascending and radiating, to 6(–9) cm underground, strigulose.

2–15 cm;

stipules sometimes shortly connate-sheathing at proximal nodes, 1.5–5.5 mm, submembranous becoming papery-scarious;

leaflets 13–25, blades elliptic or ovate, 2–16 mm, apex usually acute, sometimes obtuse, surfaces silvery-villous.

5–10 cm;

stipules connate-sheathing at proximal nodes, distinct at distal nodes, (3–)5–11 mm, membranous; petiolate;

leaflets 19–27, blades elliptic or elliptic-obovate, 7–16 mm, apex shallowly emarginate, surfaces sparsely strigose abaxially, glabrous or glabrescent adaxially.

1–11-flowered, flowers ascending;

axis 0.3–6 cm in fruit;

bracts 2–5 mm;

bracteoles 0–2.

10–16-flowered, flowers ascending to spreading;

axis 1–2 cm in fruit;

bracts 6–10 mm;

bracteoles 2.

0.5–15 cm.

ascending, 4.5–7.5 cm.

1–3 mm.

2–2.5 mm.

18–26 mm;

calyx cylindric, 8.3–18 mm, villous, tube 6.5–13.5 mm, lobes subulate, 1.5–5.7 mm;

corolla often pink-purple, sometimes pale;

banner recurved through 40°;

keel concealing style, 14.6–18.6(–19) mm.

17–19 mm;

calyx purplish, short-cylindric, 9–10.5 mm, sparsely pilosulous, tube 7–8.5 mm, lobes subulate, 2 mm;

corolla bright pink-purple;

keel 13–14 mm.

ascending, brightly purple-mottled, usually curved, obliquely ovoid-oblong, dorsiventrally compressed, ventrally grooved proximally, 15–35 × 5.5–12 mm, unilocular, fleshy becoming somewhat woody, strigose or villosulous.

pale green or reddish becoming stramineous suffused with brown-purple, straight, globose to plumply oblong-ellipsoid, terete or slightly dorsiventrally compressed, 14–26 × 12–16 mm, bilocular, somewhat fleshy, glabrous;

valves differentiated into double envelope separated by air space 1.5–2 mm wide.

24–30.

26–28.