Crooked Run Valley
Elm (Family Ulmaceae)
Ulmaceae is a family of flowering plants 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 scat-
tered distribution elsewhere except for Australasia.
The family was formerly sometimes 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 fam-
ily Cannabaceae. The circumscription included in the taxobox is the one
suggested by P. Stevens on his Missouri Botanical Garden Angiosperm
Phylogeny Website and includes information from the Royal Botanic
Gardens, Kew Vascular Plant Families and Genera list. Some classifica-
tions also include Genus Ampelocera.