Our ID Notes may contain important tips necessary for distinguishing this gall from similar galls and/or important information about the taxonomic status of this gall inducer.
Cynipid galls of the eastern United States
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Quercus imbricaria
Leaf galls, detachable
Ellipsoidal, 3 mm high by 1.7 mm in dia. Standing erect on upper surface in a group of about 20, nearly black. Cincinnati OH and St Louis MO.
Unless noted otherwise in the ID Notes, observations of this gall are collected in the Observation Field Gallformers Code with value q-imbricaria-numerous-ellipsoidal-galls on iNaturalist. You can view them here: