Flora of North America species comparison

prostrate and radiating, to 15(–20) cm, internodes often concealed by stipules, strigose or strigulose.

single or few, decumbent with ascending tips or trailing and diffuse, densely white-strigulose-pilose.

(2–)4–14 cm;

stipules sometimes connate-sheathing at proximal nodes (vars. humistratus and missouriensis), (2–)3–9 mm, firm or submembranous becoming scarious or papery;

leaflets (5–)11–17(–21), blades elliptic to obovate, 3.5–13(–17) mm, apex acute, apiculate, or obtuse, surfaces strigose to strigulose.

(2–)3–9(–10) cm;

stipules distinct, 1.5–5(–6.5) mm, herbaceous becoming papery;

leaflets (7 or)9–17, blades oblanceolate, oblong-oblanceolate, or elliptic, 4–16 mm, apex obtuse, truncate, or emarginate, surfaces pubescent.

(3–)4–15-flowered, flowers ascending to spreading;

axis (0.5–)1–4 cm in fruit;

bracts 2.5–8 mm;

bracteoles 0–2.

(3 or)4–9-flowered, flowers ascending;

axis 1.5–5.5 cm in fruit;

bracts 0.8–2.2 mm;

bracteoles 0.

ascending, (1.5–)3.5–11 cm.

incurved-ascending, 2–5.5 cm.

1–3.5 mm.

0.2–1 mm.

9.5–22(–24) mm;

calyx purple-tinged, cylindric or deeply campanulate, 5–13(–14.3) mm, strigulose, tube 4.1–10 mm, lobes subulate, (0.7–)1.4–4.5(–5.3) mm;

corolla usually pink-purple, purple, lavender, or violet-red, rarely white;

banner recurved through 45°;

keel 8.9–17.3(–18.5) mm.

(3.3–)3.5–6.5 mm;

calyx turbinate-campanulate, 3.3–4.3 mm, densely silvery-pilose, tube 2.1–2.7 mm, lobes broadly subulate, 1–1.6 mm;

corolla whitish, faintly tinged with pink-lilac or cream-pink;

banner recurved through 40°;

keel 3.6–5 mm, apex round or narrowly triangular and beaklike.

usually persistent, ascending or descending, brownish becoming black, straight or slightly incurved, subsymmetrically or obliquely oblong, oblong-ellipsoid, or ellipsoid, subterete, or dorsiventrally or ± laterally compressed, (11–)14–28(–30) × (4–)5–9(–10) mm, unilocular or subunilocular, distinctly beaked, fleshy becoming stiffly leathery or subligneous, walls much less than 1 mm thick, strigulose, strigose, or glabrous.

ascending, incurved, semi-ellipsoid or lunately ellipsoid, slightly inflated, scarcely bladdery, 10–17 × 4.5–7 mm, thin becoming papery, opaque, canescently strigulose-pilosulous.

(33–)35–55(or 56).

(3 or)4–6(or 7).

= 22.