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.
Gallformers ID Notes
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A tapered swelling on the stems of Boltonia diffusa. An orange midge larva was found inside.
Unless noted otherwise in the ID Notes, observations of this gall are collected in the Observation Field Gallformers Code with value b-diffusa-stem-swelling on iNaturalist. You can view them here: