Photo 10536745, (c) Cat Chang, some rights reserved (CC BY-NC), uploaded by Cat Chang

Attribution © Cat Chang some rights reserved Uploaded by catchang Source iNaturalist Associated observations Photos / Sounds What Swamp Smartweed (Persicaria hydropiperoides) Observer catchang Date September 17, 2017 02:21 PM PDT Place Marin County, CA, USA (Google, OSM) Date Added September 17, 2017 05:34 PM PDT 2 comments 3 IDs Research Grade View Sizes small medium large original