Flora of North America species comparison

thorns sparse to abundant;

young twigs reddish brown-hairy, glabrescent.

stipules 3–8 mm;

petiole 1–3 mm;

blade oblanceolate or narrowly obovate, 2.5–4.5 × 0.5–1.2 cm, base cuneate, margins entire, rarely with minute teeth near apices, apex truncate or retuse, rarely rounded, abaxial surface brown-hairy, becoming glabrate and pale green, not glaucescent, adaxial glabrous.

3–4 cm diam.

5–12 mm, sparsely brown-hairy.

8–10 mm diam.;

hypanthium densely hairy;

calyx brown- or yellowish brown-puberulent when young, glabrescent, sepals triangular, 1–1.3 mm, apex acute;

petals suborbiculate, 3–4 mm, apex slightly emarginate.

orange-red, 4–7 mm diam.;

pedicels 5–13 mm.