Prunus cyclamina

Prunus cyclamina, called the cyclamin cherry (or cyclamen cherry), the Chinese flowering cherry, and in Chinese: 襄阳山樱桃, the Xiangyang mountain cherry, is a species of flowering cherry native to China, preferring to grow at 1000–1300 m above sea level. It has prolific, attractive pale pink flowers that bloom early and outlast many later-blooming cherries and, accordingly, excellent potential as an ornamental. In the Arnold Arboretum in Massachusetts two individuals have prospered for decades, never showing any signs of the typical diseases—including the nematodes, viruses and black knot—that afflict their Prunus neighbors....read more on Wikipedia.