Deutzia taiwanensis (Maxim.) C. K. Schneid.

Shrubs 3-5 m tall. Flowering branchlets purplish red, 8-14 cm, 4-6-leaved, stellate hairy. Petiole 6-8 mm, those on flowering branchlets 2-4 mm; leaf blade ovate-oblong or -lanceolate, 5-8 × 2-3 cm, papery or thinly leathery, both surfaces appressed 4- or 5(or 6)-rayed stellate hairy, veins in 4-6 pairs, base cuneate or rounded, margin irregularly serrulate, apex acuminate. Cymose panicles 6-8 × 3-4 cm, many flowered; pedicels 3-5 mm. Calyx tube ca. 2.5 × 3 mm; lobes deltoid, densely 8-12-stellate hairy. Petals induplicate, white, oblong, 9-13 × 3-4 mm. Outer stamens ca. 1.2 cm; filaments 2-dentate at apex, teeth not reaching anthers; anthers borne between filament teeth, stalked, oblong. Inner stamens shorter than outer ones. Styles 3 or 4, longer than outer stamens. Capsule hemispheric, ca. 3.5 mm in diam. Fl. Mar-Jul, fr. Aug-Oct.

Taiwan.

* Mixed forests, thickets, mountain slopes; 300-2500 m.

Deutzia crenata Siebold & Zuccarini var. taiwanensis Maximowicz, Mém. Acad. Imp. Sci. Saint Pétersbourg, Sér. 7, 10: 23. 1867; D. cordatula H. L. Li; D. gracilis Siebold & Zuccarini subsp. arisanensis Zaikonnikova; D. kelungensis Hayata.