Photo 547580, (c) Christopher Tracey, some rights reserved (CC BY-NC-SA), uploaded by Christopher Tracey

Attribution © Christopher Tracey some rights reserved Uploaded by ctracey Source iNaturalist Associated observations Photos / Sounds What Japanese Knotweed (Reynoutria japonica) Observer ctracey Date October 19, 2013 01:19 PM EDT Place 4516 Browns Hill Rd, Pittsburgh, Pennsylvania, US (Google, OSM) Date Added October 20, 2013 10:02 AM EDT 3 IDs Research Grade View Sizes small medium large original