Trees to 6–8 m tall. Branchlets dark purple or purplish brown, sparsely white lenticellate, apices often becoming thornlike; buds oblong-ovoid or triangular-ovoid, glabrous or scales slightly tomentose at margin and apex, apex acute. Stipules caducous, linear-lanceolate, 7–11 mm, herbaceous, margin sparsely serrate, apex acuminate; petiole 2–4.5 cm, sparsely pubescent or glabrous; leaf blade ovate, broadly ovate, or suborbicular, 4–7 × 4–5 cm, lateral veins 8–10 pairs, glabrous, base rounded or subcordate, margin shortly spinulose-serrate, apex long or shortly acuminate, Raceme umbel-like, 6–8-flowered; peduncle sparsely pubescent or subglabrous; bracts caducous, linear-lanceolate, 6–9 mm, membranous, villous, margin serrate, apex acuminate. Pedicel 1.2–1.5 cm; subglabrous. Flower 2.5–3 cm in diam. Hypanthium cupular, subglabrous. Sepals triangular-ovate, abaxially sparsely pubescent, adaxially densely pubescent, margin denticulate; apex acuminate. Petals white, elliptic-obovate, ca. 8 × 6 mm, shortly clawed at base. Stamens 20, less than 1/2 as long as petals. Ovary 4(or 5)-loculed, with 2 ovules per locule; styles 4, nearly as long as stamens, glabrous. Pome brown, spotted, globose or ovoid, 1.5–2.5 cm in diam., 4(or 5)-loculed; fruiting pedicel 1.5–3 cm., glabrous; sepals persistent. Fl. Apr, fr. Aug–Sep. 2n = 34*.
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