Galls on Coyote bush (Baccharis pilularis) induced by a midge (Rhopalomyia californica).
Edgewood County Park
San Mateo County, CA
Reference: Field Guide to PLANT GALLS of California and Other Western States by Ron Russo- ISBN 978-0-520-24886-1
|Photos or sounds?||Yes|
|Is the organism wild/naturalized?||Unknown|
|Does the location seem accurate?||Unknown|
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