Vascular Plants of the Gila Wilderness

Presented in Association with the
Western New Mexico University Department of Natural Sciences

Ulmus pumila Linnaeus
(Siberian Elm)


Family: Ulmaceae

Status: Exotic, Noxious Weed (Class C, widespread within the state)

Synonyms:
None

Ulmus pumila is ubiquitous in cities and on roadsides at middle elevation. It has toothed, oval leaves with acute apices and evenly spaced veins to the leaf margin. The bark is grayish and somewhat rough. The fruit is a samara-- a notched wing surrounds the seed. The leaf scars are very small on winter twigs and the bud scales are fringed with long white hairs. The flowers bloom in the spring before the plant leafs out. The flowers are small and inconspicuous. Ulmus pumila is monoecious.
Please click on an image for a larger file.



Ulmus pumila, photo Russ Kleinman, Pinos Altos Range, Pinos Altos, Oct. 21, 2007



Ulmus pumila, samaras, photo Russ Kleinman, Pinos Altos Range, Silver City, March 11, 2009



Ulmus pumila, bark, photo Russ Kleinman, Pinos Altos Range, Silver City, March 11, 2009



Ulmus pumila, winter twig, photo Russ Kleinman, Silver City, December 27, 2009



Ulmus pumila, 3x macro of winter bud scales fringed with white hairs, photo Russ Kleinman, Silver City, December 27, 2009



Ulmus pumila, 2x field macro of swollen bud as spring approaches, photo Russ Kleinman, Silver City, February 14, 2010



Ulmus pumila, 1x field macro of flowers, photo Russ Kleinman, Mimbres Valley, Acklin Hill, February 18, 2010



Ulmus pumila, 1x field macro of flowers, photo Russ Kleinman, Mimbres Valley, Acklin Hill, February 18, 2010



Ulmus pumila, 4x macro of individual flower with stamens and bipartite fuzzy stigma, photo Russ Kleinman, Mimbres Valley, Acklin Hill, February 18, 2010



Ulmus pumila, closeu of leaf, photo Russ Kleinman, Mimbres Valley, Acklin Hill, April 25, 2010


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