Description from Flora of China
Shrubs ca. 1.5 m tall. Flowering branchlets brown, 5-17 cm, ca. 4-leaved, glabrous. Petiole 2-4 mm; leaf blade lanceolate, elliptic-lanceolate, or broadly ovate-lanceolate, 3-3.5 × 1-1.2 cm, papery, abaxially appressed 4- or 5(or 6)-rayed stellate hairy, adaxially 3- or 4-rayed stellate hairy, veins in 3 or 4 pairs, base cuneate, margin serrulate, apex acuminate. Inflorescences racemose or narrowly paniculate, 8-12 cm, 12-25-flowered, glabrous; pedicels slender, 5-10 mm. Calyx tube 2.5-3 × ca. 2.5 mm; lobes ovate or ovate-deltoid, ca. 1.5 cm, glabrous or sparsely hairy. Petals imbricate, white, oblong or oblong-lanceolate, 10-12 × 4-6 mm. Outer stamens 5-6 mm; filaments 2-dentate at apex or subulate and toothless, teeth (if present) not reaching anthers; anthers stalked, ovoid. Inner filaments all 2-dentate at apex. Styles 3, subequaling or longer than outer stamens. Capsule hemispheric, ca. 5 mm in diam. Fl. Mar-Apr.
Cultivated. Shaanxi, Zhejiang [native to Japan].