Photo 74002767, (c) amytsnyder, some rights reserved (CC BY-NC)

Attribution © amytsnyder some rights reserved Uploaded by amytsnyder Source iNaturalist Associated observations Photos / Sounds What Marsh Fern (Thelypteris palustris) Observer amytsnyder Date May 20, 2020 04:12 PM EDT Place Cabin John Regional Park, Bethesda, MD, US (Google, OSM) Date Added May 20, 2020 10:50 PM UTC 1 ID Needs ID View Sizes small medium large original