Photo 162922366, (c) Garth Harwood, some rights reserved (CC BY), uploaded by Garth Harwood

Attribution © Garth Harwood some rights reserved Uploaded by garth_harwood Source iNaturalist Associated observations Photos / Sounds 4 photos What Alder Root Gall Bacteria (Frankia alni) Observer garth_harwood Date October 10, 2021 05:52 PM PDT Place San Mateo County, CA, USA (Google, OSM) Date Added October 11, 2021 10:49 AM PDT Description Host: Red Alder. Tags root galls, galls, gall week, PCO 2 IDs Research Grade View Sizes small medium large original