Flora of North America species comparison

spreading, sometimes rooting at nodes;

branchlets green, sometimes tinged red, not thorn-tipped, usually round, sometimes angled, in cross section, flexible, puberulent.

prostrate to spreading, sometimes rooting at proximal nodes;

branchlets reddish brown, flexible to ± rigid, tomentulose.

petiole 3–11 mm;

blade flat, elliptic to widely ovate, 12–45 × 6–20 mm, base obtuse to rounded, margins serrulate to denticulate, not revolute, usually not wavy, sometimes wavy, teeth 27–42, apex ± obtuse to rounded, abaxial surface pale green, pilosulous, adaxial surface green, pilosulous; usually pinnately veined, rarely 3-veined from base.

not fascicled;

petiole 1–2 mm;

blade flat to ± cupped, slightly folded lengthwise adaxially, narrowly oblanceolate to narrowly oblong-oblanceolate, 5–15 × 3–6 mm, base cuneate, margins thick to ± revolute, usually denticulate near apex, sometimes entire, teeth (0 or) 2–3, apex usually truncate, sometimes obtuse, abaxial surface pale green, sparsely strigillose to glabrous, adaxial surface green to grayish green, dull, glabrous, sometimes glaucous.

axillary, umbel-like to racemelike, 1.3–4 cm.

axillary, 1–1.7 cm.

sepals, petals, and nectary usually blue to pale blue, rarely white.

sepals, petals, and nectary pale blue to lavender.

4–5 mm wide, weakly lobed near apex;

valves smooth, crested.

4–6 mm wide, lobed;

valves smooth, horns subapical, minute or weakly developed bulges, intermediate ridges absent.

= 24.