Photo 123770, (c) Gwen Landis, some rights reserved (CC BY), uploaded by Gwen Landis

Attribution © Gwen Landis some rights reserved Uploaded by glandis Source iNaturalist Associated observations Photos / Sounds What Bull Thistle (Cirsium vulgare) Observer glandis Date May 29, 2012 03:09 PM EDT Place 16 Crescent St, Stow, Massachusetts, US (Google, OSM) Date Added May 29, 2012 03:38 PM EDT 3 IDs Research Grade View Sizes small medium large original