Photo 77854386, (c) Joe Walewski, some rights reserved (CC BY-NC), uploaded by Joe Walewski

Attribution © Joe Walewski some rights reserved Uploaded by jwalewski Source iNaturalist Associated observations Photos / Sounds What Lesser Rocktripe (Umbilicaria muhlenbergii) Observer jwalewski Date June 9, 2020 11:27 AM CDT Place Lake, Minnesota, United States (Google, OSM) Date Added June 9, 2020 02:09 PM CDT 2 IDs Research Grade View Sizes small medium large original