Description from Flora of China
Cerasus napaulensis Seringe in Candolle, Prodr. 2: 540. 1825; Prunus napaulensis (Seringe) Steudel.
Trees to 27 m tall. Branches blackish brown, glabrous, with conspicuous pale lenticels; branchlets reddish brown, glabrous. Winter buds ovoid, glabrous. Stipules linear, margin glandular serrate, apex acuminate. Petiole 0.8–1.5 cm, glabrous, without nectaries; leaf blade narrowly elliptic, ovate-elliptic, or elliptic-lanceolate, 6–14 × 2–6 cm, abaxially pale green and glabrous or very rarely sparsely pubescent when young, adaxially dark green and glabrous, base cuneate, margin coarsely serrate or sometimes undulate, apex acute to shortly acuminate. Racemes 7–14 cm, many-flowered, basally with 2 or 3 leaves; peduncle glabrous or subglabrous, later thickened and with pale lenticels. Flowers ca. 1 cm in diam. Pedicel 4–6 mm, conspicuously thickened in fruit, velutinous, glabrescent or nearly so, with conspicuous pale lenticels in fruit. Hypanthium cup-shaped, outside pubescent to subglabrous. Sepals triangular-ovate, soon caducous, outside pubescent, margin serrulate, apex acuminate. Petals white, obovate-oblong, base cuneate and shortly clawed, margin apically erose. Stamens 22–27. Ovary glabrous. Style longer than stamens; stigma disc-shaped. Drupe dark purple to black, ovoid, 1–3 cm in diam., glabrous. Fl. Apr, fr. Jul.
Broad-leaved evergreen or deciduous mixed forests, open places beside streams; 1200--2500 m. Anhui, Guizhou, Hunan, Jiangxi, Shaanxi, Sichuan, Xizang, Yunnan [Bhutan, N India, N Myanmar, Nepal, Sikkim].