Another highly parasitized Ericameria nauseosa plant (Rubber Rabbitbrush)
https://gallformers.org/gall/3970
e-nauseosa-terminal-stem-gall
Gall formed by an undescribed species of Rhopalomyia
Denali National Park
On Creosote
gall on Artemisia tridentata
So many of them! Literally dozens!
On creosote bush.
gall on Artemisia tridentata
Don't know enough about galls, but they're wooly and they're on Four-wing Saltbush! 😃