Photo 180758, (c) Marissa Frances, some rights reserved (CC BY-NC), uploaded by Marissa Frances

Attribution © Marissa Frances some rights reserved Uploaded by marsbug Source iNaturalist Associated observations Photos / Sounds 2 photos What Horseweed (Erigeron canadensis) Observer marsbug Date September 28, 2012 Place Elysian Park (Google, OSM) Date Added September 28, 2012 01:59 PM MDT 3 IDs Research Grade View Sizes small medium large original