Photo 19607182, (c) Isaac Larkin, some rights reserved (CC BY-SA), uploaded by Isaac Larkin

Attribution © Isaac Larkin some rights reserved Uploaded by isaaclarkin Source iNaturalist Associated observations Photos / Sounds What Creeping Thistle (Cirsium arvense) Observer isaaclarkin Date June 12, 2018 02:32 PM CDT Place Northwestern University, Evanston, IL, US (Google, OSM) Date Added June 12, 2018 02:53 PM CDT 2 IDs Research Grade View Sizes small medium large original