Flora of North America species comparison

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;

petiole 1–3 mm;

blade flat to ± cupped, elliptic, widely obovate, or suborbiculate, 10–20 × 7–18 mm, base rounded, margins thick, not revolute, usually sharply denticulate, sometimes weakly denticulate to almost entire, teeth 7–15, apex rounded to ± truncate, abaxial surface pale green to yellowish green, puberulent, hairs curly, glabrescent, adaxial surface green to yellowish green, sparsely puberulent, hairs curly, glabrescent.

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

axillary, 0.7–2 cm.

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

sepals and petals white to cream;

nectary yellow to green.

3–4 mm wide, weakly lobed;

valves smooth, viscid, not crested.

4–6 mm wide, usually not, sometimes weakly, lobed;

valves smooth, horns lateral, usually minute, sometimes absent, spreading, intermediate ridges absent.

= 24.

= 24.