Photo 9926182, (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 2 photos What American Pillwort (Pilularia americana) Observer dgreenberger Date August 21, 2017 02:49 PM PDT Place Shadyside Trail, Fairfax, CA 94930, USA (Google, OSM) Date Added August 21, 2017 05:34 PM PDT 2 comments 4 IDs Research Grade View Sizes small medium large original