Photo 11853631, (c) mhays, some rights reserved (CC BY-NC), uploaded by mhays

Attribution © mhays some rights reserved Uploaded by mhays Source iNaturalist Associated observations Photos / Sounds What Purple-stem Cliffbrake (Pellaea atropurpurea) Observer mhays Date October 19, 2001 Place Mammoth Cave NP, Edmonson County, KY, USA (Google, OSM) Date Added November 15, 2017 05:49 PM PST 2 IDs Research Grade View Sizes small medium large original