Description from Flora of China
Deutzia glomeruliflora var. lichiangensis (Zaikonnikova) S. M. Hwang; D. longifolia Franchet var. sikangensis (W. P. Fang) P. He; D. purpurascens (Franchet ex L. Henry) Rehder var. lichiangensis Zaikonnikova; D. sikangensis W. P. Fang; D. subsessilis Rehder.
Shrubs 1-2 m. Flowering branchlets red-brown, 3-12 cm, 4-6-leaved, stellate hairy. Petiole 1-5 mm; leaf blade abaxially greenish, ovate lanceolate or lanceolate, 2-5(-8) × 0.6-1.5(-2) cm, papery, abaxially 4-10-rayed stellate hairy, indumentum continuous, hairs with or without long central rays, adaxially sparsely 4-6(or 7)-rayed stellate hairy, veins in 3-6 pairs, base broadly cuneate, margin serrulate, apex acuminate. Cymes aggregate, short, 3-8 × 3-4 cm, 3-18-flowered; pedicels 5-10 mm. Calyx tube ca. 3 × 3 mm, densely stellate hairy, hairs with central rays; lobes purplish or green, lanceolate, subequaling tube, membranous. Petals induplicate, white, obovate-elliptic, 8-12 × 4-5 mm. Outer stamens 5-6 mm; filaments 2-dentate at apex, teeth exceeding anthers; anthers oblong. Inner stamens 3-4 mm; filaments irregularly 2- or 3-lobed at apex; anthers borne near middle of filaments abaxially. Styles 3, subequaling stamens. Capsule brown, hemispheric, ca. 4.5 mm in diam., with persistent, recurved calyx lobes. Fl. Apr-Jun, fr. Aug-Oct.
* Picea forests, mixed forests, thickets; 2000-3600 m. W Sichuan, N Yunnan.