Photo 143534, (c) Rob Curtis, some rights reserved (CC BY-NC-SA), uploaded by Rob Curtis

Attribution © Rob Curtis some rights reserved Uploaded by rcurtis Source iNaturalist Associated observations Photos / Sounds What Common Knotgrass Complex (Complex Polygonum aviculare) Observer rcurtis Date July 5, 2012 Place Tallmadge, OH (Google, OSM) Date Added July 5, 2012 08:24 PM EDT 3 IDs Research Grade View Sizes small medium large original