The Families of Flowering Plants L. Watson and M. J. Dallwitz Zygophyllaceae R. Br. Including Tribulaceae Trautv., Tetradiclidaceae Excluding Balanitaceae , Nitrariaceae , Peganaceae Habit and leaf form .
Plants succulent, or non-succulent.
Leaflets pulvinate, or epulvinate. Leaves stipulate . Leaves without a persistent basal meristem. Leaf anatomy . Mucilaginous epidermis present, or absent.