The Families of Flowering Plants - Hydrangeaceae Dum. The Families of Flowering Plants L. Watson and M. J. Dallwitz Hydrangeaceae Dum. Excluding Philadelphaceae Habit and leaf form . Plants non-succulent .
Leaves exstipulate .
Lamina margins entire, or serrate, or dentate. Vegetative buds scaly. Leaves without a persistent basal meristem. Leaf anatomy . Hairs present, or absent.