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 bunch or rosette of leaflets on Acmispon americanus. Observed in California in October.
Unless noted otherwise in the ID Notes, observations of this gall are collected in the Observation Field Gallformers Code with value a-americanus-witches-broom on iNaturalist. You can view them here: