Photo 46631670, (c) captainpossum, some rights reserved (CC BY-NC)

Attribution © captainpossum some rights reserved Uploaded by captainpossum Source iNaturalist Associated observations Photos / Sounds What Japanese Knotweed (Reynoutria japonica) Observer captainpossum Date July 30, 2019 01:47 PM EDT Place Chesapeake & Ohio Canal National Heritage Park, Hancock, MD, US (Google, OSM) Date Added July 30, 2019 05:48 PM UTC 2 IDs Research Grade View Sizes small medium large original