Flora of North America species comparison

prostrate or spreading, rooting at proximal nodes;

branchlets brown to reddish or grayish brown, rigid, tomentulose.

petiole 3–10 mm;

blade flat to cupped, elliptic to ovate, 10–40(–50) × 5–15(–20) mm, base obtuse to rounded, margins denticulate to serrulate, usually not revolute, sometimes incompletely revolute, teeth glandular, 23–48, apex obtuse, abaxial surface pale green, sparsely puberulent to villosulous or glabrate, veins prominently raised, puberulent to villosulous, adaxial surface dark green, glabrate; 3-veined from base.

not fascicled, sometimes crowded, not obscuring internodes;

petiole 1–2 mm;

blade flat or ± cupped, elliptic to oblanceolate, 4–12 × 3–8 mm, base obtuse to rounded, margins ± thick, not revolute, usually entire, sometimes minutely denticulate near apex, teeth 0–3, apex rounded to retuse, abaxial surface pale green, strigillose, adaxial surface dark green, shiny, puberulent, glabrescent.

terminal, usually racemelike, rarely paniclelike, 2.5–9 cm.

axillary, 1–2.3 cm.

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

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

3–4 mm wide, weakly lobed;

valves smooth, viscid, not crested.

4–6 mm wide, weakly lobed;

valves smooth, horns subapical, prominent, erect, intermediate ridges absent.

= 24.