Ulmus elliptica

Ulmus elliptica was initially reported by Koch to form extensive woods in the Caucasus. It resembles Ulmus major in leaf morphology but differs in its samara. Some botanists consider it closely related to U. glabra, while others suggest it resembles U. rubra in its samara. Many authorities regard it as a regional form of U. glabra, though some, including Henry, Bean, and Krüssman, recognize it as a distinct species. It is also distinguished from U. scabra (now U. glabra Huds.) in certain Armenian and Russian plant lists.