Flora of North America species comparison

densely to sparsely stellate-hairy, hairs to 0.5 mm.

minutely stellate-hairy.

stipules subulate, 2–5 mm;

petiole 1/2–1 times length of blade;

blade slightly discolorous, ovate, 2–5 cm, slightly longer than wide, base cordate, margins coarsely dentate, apex acute, surfaces stellate-hairy.

stipules early-deciduous, obscure;

petiole to 1/2 length of blade;

blade concolorous, broadly ovate, 6–18 cm, base subcordate, margins obscurely dentate to subentire, apex acuminate, sparsely stellate-hairy.

axillary solitary flowers.

terminal racemes.

2–5 cm, usually subequal to petiole;

involucellar bractlets 5, alternate with calyx lobes, usually linear-lanceolate, 1–2 mm wide, shorter than to subequal to calyx, hirsute.

1–4 cm;

involucellar bractlets ca. 8, lanceolate, 8.8–10 × 2.5–4 mm, subglabrous.

calyx 9–12 mm, hirsute, lobes prominently 3–5-veined;

corolla rotate, petals lavender to pink, not auriculate, 15–25 mm;

staminal column usually declinate resulting in somewhat bilateral flower, with 5 apical teeth, glabrous;

stigmas included, usually villous.

calyx 8–11 mm, minutely stellate-hairy, lobes not prominently veined;

corolla tubular, petals pale yellow or yellow-green, not auriculate, 12–18 mm;

staminal column with 5 apical teeth;

stigmas included.

tufted on hilum.

not tufted on hilum.

pallid, 8–9 mm diam., subglabrous;

mericarps pale brown, without spines, obscurely carinate dorsally, otherwise smoothly rounded, 3.5–4 mm.

pale green, maturing brown, 10–13 mm diam., woody, glabrous;

mericarps narrowed basally, 7–9 mm, smooth, usually 3-pointed apically.