Illinois Exotic Species:
Siberian elm Ulmus pumila

Siberian elm is a fast-growing deciduous tree native to China and Siberia that has been widely planted as an ornamental. Older trees often lose their ornamental appeal due to the loss of limbs. Blooming occurs in April or early May, and the winged, flattened fruits are dispersed by wind. The small, toothed leaves are borne alternately along the stem. Although tolerant of a variety of conditions, this tree rapidly colonizes open sites such as prairies. It grows throughout Illinois.

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