05/31/2026
Don't let this tree blend in! Tree-of-heaven is a fast-growing invasive species of increasing concern in Alabama. Use these clues to identify this plant and control it early before it spreads.
๐ฟ Compound leaves can grow up to 3 feet long, with 10-40 leaflets.
๐ฟ Leaflets are arranged oppositely (or nearly oppositely) along the leaf axis.
๐ฟ Leaflets have smooth margins other than 1-4 coarse teeth near the base of each leaflet, with a gland (extrafloral nectary) on the underside.
๐Female trees produce clusters of seeds with a flat, papery wing (samara), often twisted.
๐ณ Young trees have smooth gray bark, which becomes rough and โcantaloupe-likeโ as they age.
๐Can be found statewide, although more common in northern Alabama and urban or disturbed areas, though now entering more intact forests.
โ ๏ธ Tree-of-heaven propagates through wind-driven winged fruits (samaras) and extensive root suckering. Sometimes confused with other species including native sumacs, black walnut, or American elderberry.
Coming soon: New ACES article on tree-of-heaven identification, look alikes, and control options.
