18. Deutzia discolor Hemsley in F. B. Forbes & Hemsley, J. Linn. Soc., Bot. 23: 275. 1887.
异色溲疏 yi se sou shu
Deutzia densiflora Rehder; D. discolor var. bicruristyli P. He; D. discolor f. compacta Diels; D. discolor var. gannanensis L. C. Wang & X. G. Sun; D. discolor var. major Veitch; D. globosa Duthie; D. longifolia Franchet var. farreri Airy Shaw; D. reflexa Duthie; D. vilmorinae Lemoine & Bois.
Shrubs 2-3 m tall. Flowering branchlets brownish, 5-15 cm, 2-4(-6) leaved, sparsely stellate hairy. Petiole 3-6 mm; leaf blade abaxially greenish gray, adaxially greenish, elliptic-lanceolate or oblong-lanceolate, 5-10 × 2-3 cm, papery, abaxially densely 10-12(or 13)-rayed stellate hairy, adaxially sparsely 4-6-rayed stellate hairy, hairs with central rays on both surfaces, veins in 5 or 6 pairs, base cuneate or broadly so, margin serrulate, apex acute. Cymes 6-10 × 5-8 cm, 12-20-flowered; pedicels 1-1.5 cm. Calyx tube 3-3.5 × 3.5-4 mm, densely 10-12-rayed stellate hairy; lobes oblong-lanceolate, subequaling or slightly longer than tube. Petals induplicate, white, elliptic, 10-12 × 5-6 mm. Outer stamens 5.5-7 mm; filaments 2-dentate at apex, teeth not reaching anthers, acute at apex; anthers stalked, ovoid or globose. Inner stamens 3.5-5 mm. Styles 3 or 4, subequaling or slightly longer than stamens. Capsule brown, hemispheric, 4.5-6 mm in diam., with persistent, recurved calyx lobes. Fl. Jun-Jul, fr. Aug-Oct.
* Mixed thickets, mountain slopes, stream banks; 1000-2500 m. Gansu, Henan, Hubei, Shaanxi, Sichuan.