Hydrangea bretschneideri

Hydrangea bretschneideri is a species of flowering plant in the family Hydrangeaceae, native to most of China.
Discovered in the mountains around Beijing, China by Dr. Bretschneider in 1882. "Hydrangea bretschneideri" is a sturdy, bushy, deciduous scrub with peeling chestnut-brown bark. In the summer its blooms consist of ten or more large white flowers that turn pinkish with age.