Southern Europe, Mediterranean, Turkey, Canary Islands, Northern Africa, Central Asia, Western Asia
China, Japan, Korea
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
jiujiangense, horizontale
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 20, 21