Photo 4933261, (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 3 photos What Bristly Oxtongue (Helminthotheca echioides) Observer cwwood Date July 5, 2016 06:00 PM PDT Place San Luis Obispo County, CA, USA (Google, OSM) Date Added September 18, 2016 05:58 PM PDT 2 IDs Research Grade View Sizes small medium large original