Dioscoreaceae R. Br. Including Cladophyllaceae Dulac, Stenomeridaceae J.G. Agardh, Tamaceae S.F. Gray Excluding Trichopodaceae Habit and leaf form . Shrubs, or herbs, or lianas. Mesophytic, or xerophytic.
Leaves stipulate, or exstipulate.
General anatomy . Leaf anatomy . The mesophyll usually containing calcium oxalate crystals. Stem anatomy . Xylem with vessels.