Anyone know what these are on this white sage in California?

4 Comments

1. 

   HungryThistle 2 months ago

   This is a gall, likely created by the [White Sage Leaf Gall Midge (Rhopalomyia audibertiae)](https://www.inaturalist.org/taxa/204880-Rhopalomyia-audibertiae). Basically an insect highjacks the plants growth to make a nest.

2. 

   katlian 2 months ago

   Also check gallformers.org. You can search by host plant species.

3. 

   Punchcard 2 months ago

   Wow, never seen galls on sage. Neat!

4. 

   kjbaran 2 months ago

   Remarkable