Unknown c-douglasii-abrupt-petiole-gall
The inducer of this gall is unknown or undescribed.
Family: Cecidomyiidae | Genus: Unknown
Hosts: Crataegus douglasii
Detachable: integral
Color: green
Texture: hairless, succulent
Abundance:
Shape:
Season: Spring
Related:
Alignment: integral
Walls: thick
Location: petiole, stem
Form: abrupt swelling
Cells:
Possible Range:i
Common Name(s):
Synonymy: 
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
“
Abrupt petiole swellings on Crataegus douglasii. The galls are smooth, thick, fleshy and integral to leaf petioles. A cross-sectioned gall revealed multiple larvae inside. Observed in Oregon in May.
”- Gallformers Contributors: (2024) Gallformers ID Notes©
Further Information:
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See Also:
Unless noted otherwise in the ID Notes, observations of this gall are collected in the Observation Field Gallformers Code with value c-douglasii-abrupt-petiole-gall on iNaturalist. You can view them here:
