| tree-of-heaven Ailanthus altissima Simaroubaceae |
Leaves are alternate, deciduous, pinnately compound with 13-20 leaflets bearing a pair of black tipped glands at the leaf base, which is often lobed. Twigs are very stout, usually curved upwards at the tips and with a semi-circular leaf scar and light brown pith. Bark is gray and smooth. Fruit is a single bright yellow to brown samara with the seed in the center. Tree-of-heaven has naturalized throughout the U.S. in open, disturbed areas. It is common on the side of highways.
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All text and photographs are intended for educational purposes only and are not for
commercial use in any form. All photographs are copyrighted by the named
photographer(s), text copyright by Lisa Samuelson. © 2005, all rights reserved.
Photographs by Mike Hogan.
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