The Families of Flowering Plants L. Watson and M. J. Dallwitz Elatinaceae Dum. Including Isomeraceae Dulac Habit and leaf form . Plants non-succulent . Annual, or perennial. Leaves submerged and emergent.
Leaves stipulate .
Stipules interpetiolar . Lamina margins entire, or crenate, or serrate. Leaves without a persistent basal meristem. Leaf anatomy . Mucilaginous epidermis present, or absent.