More appropriately called the tree-from-hell, this common weedy tree is a seriously invasive species from China, most often found in disturbed areas and along roadsides.

Durham Co., NC 6/27/09.

Emerging leaves.

Durham Co., NC 4/11/09.

The huge, tropical-looking compound leaves smell a bit like rotting peanut butter. They're vaguely similar in shape to those of walnut or sumac, but once you smell them, you won't mistake them.

Durham Co., NC 6/27/09.

Durham Co., NC 6/27/09.

The samaras (winged fruits), produced in summer, turn yellow to rosy as they ripen. The leaves of mature trees, like this one, don't stink.

Durham, NC 8/2/2003.

Chatham Co., NC 6/28/09.

Chatham Co., NC 6/28/09.

Chatham Co., NC 6/28/09.

Bark detail.

Ailanthus is most common in urban and disturbed areas, though it can also be found occasionally in undisturbed forest.

Durham, NC 8/2/2003.