maple leaves with red velvet erineum galls

June 26, 2014 • Tamarack Trail • Lake Tahoe Basin, El Dorado County, California

Coordinates: 38.87195,-120.07989
maple leaves with red velvet erineum galls (Acer glabrum, Aceria calaceris (Eriophyes calaceris)) [Tamarack Trail, Lake Tahoe Basin, El Dorado County, California]
Filename: 20140626-102614.jpg 2106x2808 pixels, ISO 200, f2.8 @ 1/60 sec
Acer glabrum, Aceria calaceris (Eriophyes calaceris)

The magenta patches are caused by a microscopic mite.

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