stem gall on California Sagebrush
I've looked at a lot of possibilities on this, and so far, D. rosae is the best match. But I'm open to suggestions. On R. californica.
This observation is a duplicate of https://www.inaturalist.org/observations/209308622
Beautiful little flower.
On a Brush Cherry hedge.
on Coyote Brush
on California Sagebrush