Photo 236700, (c) Charlie Hohn, some rights reserved (CC BY), uploaded by Charlie Hohn

Attribution © Charlie Hohn some rights reserved Uploaded by charlie Source iNaturalist Associated observations Photos / Sounds What Rough Cocklebur (Xanthium strumarium) Observer charlie Date October 9, 2009 Place 44.8656..., -73.298... (Google, OSM) Date Added January 16, 2013 08:49 PM EST Tags Sketches 2 comments 2 IDs Research Grade View Sizes small medium large original