Photo 1460818, (c) David Greenberger, some rights reserved (CC BY-NC-ND), uploaded by David Greenberger

Attribution © David Greenberger some rights reserved Uploaded by dgreenberger Source iNaturalist Associated observations Photos / Sounds What Nested Polypody (Polypodium calirhiza) Observer dgreenberger Date January 1, 2015 02:43 PM PST Place muir woods (Google, OSM) Date Added January 3, 2015 10:43 AM PST 3 comments 1 ID Needs ID View Sizes small medium large original