Photo 2792335, (c) Jesse Rorabaugh, some rights reserved (CC BY), uploaded by Jesse Rorabaugh

Attribution © Jesse Rorabaugh some rights reserved Uploaded by glmory Source iNaturalist Associated observations Photos / Sounds 3 photos What Bristly Oxtongue (Helminthotheca echioides) Observer glmory Date December 19, 2015 01:03 PM PST Place Hidden Valley, Riverside, California, United States (Google, OSM) Date Added December 19, 2015 03:35 PM PST 2 IDs Research Grade View Sizes small medium large original