Photo 3436335, (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 Yellow Map Lichen (Rhizocarpon geographicum) Observer jwalewski Date April 20, 2016 10:47 AM CDT Place Lake, Minnesota, United States (Google, OSM) Date Added April 20, 2016 09:17 PM CDT 3 IDs Research Grade View Associated taxa CC Yellow Map Lichen (Rhizocarpon geographicum) Info Photo (c) Amadej Trnkoczy, some rights reserved (CC BY-NC-SA) Sizes small medium large original