Flora of North America species comparison

erect, 20–65 cm, villous, rarely glabrous.

ascending to erect, 10–75 cm, villous.

blade lanceolate to ovate, 8–20 × 4–13 mm, base clasping, rounded to subcordate, margins entire or serrate, not or slightly revolute, apex rounded to obtuse or acute, surfaces villous, rarely glabrous, papillate, distinctly punctate abaxially.

blade linear to lanceolate-ovate, 8–20 × 0.7–3 mm, base not clasping, truncate, margins entire, prominently revolute, apex acute to acuminate, surfaces villous, papillate, not distinctly punctate abaxially.

0–3(–5) mm;

bracteoles 6–9(–11) mm.

0–1 mm;

bracteoles 6–9 mm.

calyx lobes 5–7 × 0.5–1.5 mm;

corolla tubular, 5–9 mm, tube yellow, veins bluish purple, limb white.

calyx lobes 3–7 × 0.5–1 mm;

corolla salverform, 7–16 mm, tube white, veins inconspicuous or pale purple, limb white.

conic, 4–5 × 2–2.8 mm.

conic, 4–5 × 1.8–2.5 mm.

0.2–0.4 mm.

0.2–0.4 mm.

= 22.