Syringa reticulata (
Japanese tree lilac; Chinese: 暴马丁香
bao ma ding xiang; error: {{lang-xx}}: text has italic markup (help)) is a species of Lilac, native to eastern Asia: in northern Japan (mainly Hokkaidō), northern China (Gansu, Hebei, Heilongjiang, Henan, Jilin, Liaoning, Nei Mongol, Ningxia, Shaanxi, Shanxi, Sichuan), Korea, and far southeastern Russia (Primorye).
(Wikipedia)