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.
Plant Galls of the Western United States
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Trichoteras sp. A (Andricus sp.)
Oak-apple-gall wasp
Hosts: Quercus palmeri
The monothalamous oak-apple galls of this wasp occur singly or in pairs on the ventral midrib of leaves of Palmer's oak.
Unless noted otherwise in the ID Notes, observations of this gall are collected in the Observation Field Gallformers Code with value q-palmeri-oak-apple-gall on iNaturalist. You can view them here: