Photo 28677403, (c) Walter Fertig, some rights reserved (CC BY-NC), uploaded by Walter Fertig

Attribution © Walter Fertig some rights reserved Uploaded by walterfertig Source iNaturalist Associated observations Photos / Sounds What Northern Adder's-Tongue (Ophioglossum pusillum) Observer walterfertig Date August 22, 2018 10:59 AM PDT Place Washington, USA (Google, OSM) Date Added November 29, 2018 08:38 PM PST 2 IDs Research Grade View Sizes small medium large original