Hydrangea zhewanensis is a species of flowering plant in the family Hydrangeaceae, native to China.
Hydrangea zhewanensis is a small shrub, which may be deciduous or evergreen, growing up to 0.7-1.5 m in height. Branchlets are brownish, densely pubescent when young. Bark peels off into fragments. Flowers are blue, oblong-ovate, 2.5-3 mm. Flowers grow in clusters, usually comprising small, fertile and also more showy sterile flowers.[1] Seed capsules are oblong-ovoid, measuring about 3 mm in diameter. Seeds are brown, ellipsoid to oblong, compressed, measuring between 0.5 and 0.7 mm, shortly winged at both ends.
Flowers June to July, fruits October to November.[2]
Sparse forests or thickets along stream banks in valleys or on mountain slopes, from 600 to 1500 m.