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 southwest
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Quercus hypoleuca [hypoleucoides]
Acorn galls
Pip gall beside mature acorn in fall.
Unless noted otherwise in the ID Notes, observations of this gall are collected in the Observation Field Gallformers Code with value q-hypoleucoides-fall-pip-gall on iNaturalist. You can view them here: