Photo 4947834, (c) cwwood, some rights reserved (CC BY-SA), uploaded by cwwood

Attribution © cwwood some rights reserved Uploaded by cwwood Source iNaturalist Associated observations Photos / Sounds 4 photos What Bristly Oxtongue (Helminthotheca echioides) Observer cwwood Date July 6, 2016 11:35 AM PDT Place San Luis Obispo County, CA, USA (Google, OSM) Date Added September 20, 2016 07:00 AM PDT 2 IDs Research Grade View Sizes small medium large original