Easy iNaturalist view of the host plants of psyllids native to mediterranean California
An iNaturalist observation-based view of all of the expected host plants of psyllids recorded from Mediterranean California*:
https://www.inaturalist.org/observations?place_id=14&subview=grid&taxon_ids=59008,53452,58319,64121...
The default search area for this map is "California", but this can be altered in order to visualize potential host plants in more specific regions.
*Mediterranean California refers to the EPA designated ecoregion (11.1.1) consisting of both the Southern California coast (including the Channel Islands) as well as Central California foothills and coastal mountains, the boundaries of which are illustrated by the following map:
https://fusiontables.google.com/embedviz?q=select+col1+from+1tlBrFt_WWn2x6U4Gwr6QeSkjpJU5yoyg0wGjQ17e+where+col0+in...
Note that in addition to the plants included here, other species of Ceanothus, Ribes, or Arctostaphylos, including rare or localized species, may also serve as potential psyllid hosts.