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.

erect and ascending, in clumps, sparsely 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.

7–20 cm;

stipules 1–4 mm, membranous becoming papery;

leaflets (17 or)19–25(or 27), blades ovate, elliptic, or obovate to obcordate, 3–12 mm, apex retuse or obtuse, surfaces sparsely strigulose abaxially, silvery-canescent adaxially.

1–11-flowered, flowers ascending;

axis 0.3–6 cm in fruit;

bracts 2–5 mm;

bracteoles 0–2.

(5–)7–12(–15)-flowered, flowers spreading-ascending;

axis (4–)6–18 cm in fruit;

bracts 1–2.4 mm;

bracteoles 0–2.

0.5–15 cm.

arising from near or proximal to middle of stem, erect and ascending, 9–20 cm, together with racemes as long as or longer than stems.

1–3 mm.

1–4.8 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.

12.6–15.7 mm;

calyx 6.1–7.6 mm, strigulose-villosulous, tube 4.1–5 mm, lobes subulate, 2–2.8 mm;

corolla ochroleucous;

banner recurved through 45°;

keel 9.7–11 mm, apex bluntly deltate.

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.

ascending, stramineous, slightly incurved, linear-lanceoloid, 3-sided compressed, 24–42 × 3.5–5.5 mm, thin becoming papery, glabrous;

gynophore stout, (0.8–)1.2–2.5 mm.

24–30.

20–24.