Photo 3423173, (c) Paul Marcum, some rights reserved (CC BY-NC), uploaded by Paul Marcum

Attribution © Paul Marcum some rights reserved Uploaded by sedge Source iNaturalist Associated observations Photos / Sounds What Field Penny-Cress (Thlaspi arvense) Observer sedge Date April 19, 2016 04:11 PM CDT Place University of Illinois, Champaign, IL, US (Google, OSM) Date Added April 19, 2016 07:49 PM CDT Description Growing in gravel around U if I pole barns. 2 IDs Research Grade View Sizes small medium large original