- Hydrangeaceae, family Hydrangeaceae, hydrangea family - sometimes included in the family Saxifragaceae
--1 is a kind of rosid dicot family
--1 is a member of Rosales, order Rosales
--1 has members:genus Hydrangea; genus Carpenteria; Decumaria, genus Decumaria; genus Deutzia; Philadelphaceae, subfamily Philadelphaceae; Schizophragma, genus Schizophragma