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.

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–)3–7 mm;

blade flat, widely elliptic to suborbiculate, 12–30 × 8–20 mm, base rounded or ± cuneate, margins entire or serrulate distal to middle, not revolute, teeth 23–41, apex obtuse or rounded, abaxial surface pale green, glabrous or veins puberulent, adaxial surface green, slightly shiny, glabrous, veins strigillose; 3-veined from base.

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

axillary, umbel-like or racemelike, 1.5–4 cm.

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

sepals and petals white;

nectary pale yellow to yellow-green.

4–5 mm wide, weakly lobed near apex;

valves smooth, crested.

4–5 mm wide, lobed;

valves smooth or ± rugulose, crested.