Description from Flora of China
Enkianthus quinqueflorus Loureiro var. serrulatus E. H. Wilson, Gard. Chron., ser. 3, 41: 344. 1907; E. calophyllus T. Z. Hsu; E. hirtinervus M. Y. Fang; E. serrulatus var. hirtinervus (M. Y. Fang) T. Z. Hsu; E. serrulatus var. sichuanensis (T. Z. Hsu) R. C. Fang; E. sichuanensis T. Z. Hsu.
Shrubs or small trees, deciduous, 3–6 m tall. Twigs glabrous. Leaf petiole 6–10 mm, glabrous or sparsely hispidulous; leaf blade elliptic, oblong-elliptic, or obovate-elliptic, 5–8 × 1.6–2.6 cm, papery, both surfaces hispidulous or glabrous, or abaxially densely floccose toward base and adaxially glabrous, midvein strongly raised abaxially, flat to slightly raised adaxially, secondary and fine veins slightly raised abaxially, inconspicuous adaxially, base broadly cuneate to narrowly obtuse, margin denticulate, apex shortly acuminate. Inflorescence umbellate, 2–6-flowered. Pedicel 1–2 cm, glabrous or pubescent. Calyx lobes triangular, ca. 2.2 mm, glabrous or ciliate. Corolla white, campanulate, ca. 1 cm; lobes recurved. Filaments pubescent. Ovary glabrous or pubescent; style glabrous. Capsule 5-angled, 7–10 mm; stalk erect, 2–3 cm. Fl. Apr, fr. May–Oct.
Forest margins, mountain slopes, roadsides; 800–1800 m. Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hubei, Hunan, Jiangxi, Sichuan, Yunnan, Zhejiang.