Flora of North America species comparison

reddish brown.

stipules 2–3.5 mm, membranous, margins strongly sericeous;

petiole 3–10 mm;

blade weakly bicolored, narrowly to broadly ovate, 4.5–7.5(–10) × 2–4(–6.5) cm, base rounded to broadly cuneate, plicate between impressed veins, apex acuminate, abaxial surface more strongly sericeous, hairs 0.1–0.2 mm.

6–13 mm (to 30 mm and expanding in fruit).

epicalyx bractlets linear-lanceolate, leafy, 2.5–5 × 1 mm;

sepals 8–15(–18) mm, thickened basally, distally leafy, fimbriate-serrate, acuminate, sericeous-strigose;

petals spreading, 17–22 mm, margins entire-erose;

stamens in several series mostly at sepal bases, rarely onto torus, filaments white, 4–6 mm, anthers yellow, 0.5–0.7 mm;

torus 2–2.5 mm, interior densely sericeous-strigose, exterior glabrous;

styles linear.

= 18.