This undated photo shows south China mountain flower hydrangea blooms in Yiliang County, Kunming City, Yunnan Province in early summer, creating a charming field of flowers. (Photos: IC)

This undated photo shows south China mountain flower hydrangea blooms in Yiliang County, Kunming City, Yunnan Province in early summer, creating a charming field of flowers.

This undated photo shows south China mountain flower hydrangea blooms in Yiliang County, Kunming City, Yunnan Province in early summer, creating a charming field of flowers.