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 stem borer causing a globular swelling at the node of a stem of Boltonia asteroides. A lepidopteran caterpillar was found within.
Unless noted otherwise in the ID Notes, observations of this gall are collected in the Observation Field Gallformers Code with value b-asteroides-stem-borer on iNaturalist. You can view them here: