a dicot family of the order Urticales including: genera Ulmus; Celtis; Planera; Trema

MS = A plant family of the order Urticales, subclass Hamamelidae, class Magnoliopsida. Members are trees and shrubs of temperate regions that have watery sap and alternate leaves which are lopsided at the base. The flowers lack petals. AN = prefer specific plant; coord with specific PLANT COMPONENTS term if pertinent; for use in therapy coord IM with PHYTOTHERAPY (IM) + disease/drug ther (IM) + PLANT PREPARATIONS or its indentations/ther use (IM or NIM) + specific plant chemical /ther use (IM) if pertinent; Manual 26.29 UI = D034401

Ulmaceae is a family of flowering plant that includes the elms (genus Ulmus) and the zelkovas (genus Zelkova). Members of the family are widely distributed throughout the north temperate zone, and have a scattered distribution elsewhere except for being absent as natives to Australasia. The family is sometimes also treated to include the hackberries, (Celtis and allies), but analysis by the Angiosperm Phylogeny Group members suggests that these genera are better placed in the related family Cannabaceae.