Strange Growths on North Avenue

Downtown strolls always turn up interesting things. A close look at trees in the North Avenue Commercial Historic District revealed this excrescence, most likely a gall.

Galls are usually caused by insects and are often specific to the hosts. These galls were on what looked like a volunteer Little Leaf Linden growing inside a metal enclosure for a Ginkgo tree.

To learn more about galls, click here.

--Bernice