Siberian elm
Ulmus pumila L.


Overview

Appearance
Ulmus pumila is a deciduous tree up to 70 ft. (21.3 m) in height. The crown is open and rounded with slender, spreading branches. The bark is light-gray with irregular furrows.
Foliage
The leaves are less than 3 in. (7.6 cm) long, alternate, simple, singly-serrate, and dark-green in color. Unlike most elms the leaf base is usually symmetrical.
Flowers
Green, inconspicuous, apetalous (without petals) flowers develop, in drooping clusters, in the spring.
Fruit
Fruits are flat, circular and 0.5 in. (1.3 cm) wide and each contains a single seed.
Ecological Threat
Ulmus pumila invades pastures, road-sides and prairies throughout the Midwest and Great Plains regions of the United States. The trees are very drought and cold resistant allowing it to grow in areas where other trees cannot. The abundant, wind-dispersed seeds allow this plant to spread rapidly. It forms dense thickets that close open areas and displace native vegetation, thereby reducing forage for wild animals and livestock. Ulmus pumila is native to northern Asia and was first introduced into North America in the 1860s. It has been planted throughout the Midwest and Great Plains for windbreaks and lumber.
Read more in the Bugwood Wiki

Resources


Selected Images



Maps



EDDMapS Distribution

EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

State Regulated List

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org

Taxonomic Rank


Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Hamamelidae
Order: Urticales
Family: Ulmaceae
Genus: Ulmus
Subject: Ulmus pumila L.

Categories


Plants - Hardwood Trees