Unknown s-ambigua-abrupt-stem-swelling
The inducer of this gall is unknown or undescribed.
Detachable: integral
Color: gray
Texture: hairy
Abundance:
Shape: globular
Season:
Related:
Alignment: integral
Walls: thin
Location: 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 swelling near the terminal end of Sphaeralcea stems. Several buds are sometimes present on the gall surface; it is unclear whether the buds were there prior to gall formation. Two leaves were emerging at the apex of the gall on a few specimens that were photographed. An observation of this gall on Bugguide had adult Cecidomyiid midges reared, implying that they are the gallformers. Observed in Mexico and throughout the Southwestern United States.
”- 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 s-ambigua-abrupt-stem-swelling on iNaturalist. You can view them here:
