family: Aceraceae (maple family)

Maple galls can occur on terminal buds, twigs, and leaves. The most common galls include the maple leaf spot (yellowish red-margined blister leaf gall on Acer rubrum) the maple bladder gall, and the gouty vein gall.

Click 'compare galls' link to see more maple galls and to compare them with other galls.

Below is an example of a maple gall: