Flora of North America species comparison

to 25 cm.

various, decreasing in size from stem base to apex, sparsely to moderately pubescent, basal leaf blades spatulate to oblanceolate, 1.6–4 × 0.4–1.4 cm, base narrowly attenuate, apex obtuse to acute, lateral veins in 2–3(–4) alternate to opposite pairs, arcuate to straight, distal cauline leaf blades linear to narrowly elliptic, 0.6–2.5 × 0.01–0.6 cm, base attenuate to cuneate, apex obtuse to acute, lateral veins not distinct.

calyx tube 3.1–6.1 × 2.5–3.2 mm, to 4.9 mm diam. in fruit, inner surface glabrous near base, becoming as pubescent as outer surface near apex and on lobes, outer surface moderately to densely pubescent, lobes 2.1–5 × 1–2.3 mm, apically obtuse;

corolla tube 8–13.9 × 5.4–11.2 mm, inner surface glabrous, outer surface sparsely to moderately pubescent, lobes 3.6–4.2 × 3.6–6.2 mm, inner surface glabrous, outer surface sparsely to moderately pubescent;

filaments adnate to corolla tube 3.7–4.8 mm beyond base, 4.2–7.5 mm, glabrous;

anthers connivent, 0.9–1.1 × 0.8–1 mm;

ovary ellipsoid, 1.9–2.3 × 0.9–1.1 mm, glabrous;

style 6.7–7.8 mm, glabrous;

stigma greenish or yellowish, 0.6–1 × 1.3–2 mm.

6.8–8 × 4.3–4.9 mm, glabrous or sparsely to moderately pubescent, hairs glandular-capitate.

brown, 0.7–1 × 0.6–0.8 mm, surfaces distinctly alveolate.

pedicels 6–22(–30) mm.

= 16.