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 1.5–5 mm;

blade flat, oblong-elliptic to elliptic, 6–25 × 3–13 mm, base cuneate, margins usually entire, sometimes denticulate distally, teeth 3–5, apex acute to obtuse, abaxial surface pale green, usually glabrous, veins sometimes strigillose, adaxial surface green, ± shiny, glabrous; pinnately veined or ± 3-veined from base.

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

axillary, racemelike, 3–8 cm.

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

sepals and petals pale to deep blue;

nectary blue.

4–5 mm wide, weakly lobed near apex;

valves smooth, crested.

4–5 mm wide, usually not lobed, sometimes weakly lobed;

valves smooth, weakly viscid, usually not crested, sometimes weakly crested.

= 24.