Photo 174884917, (c) Barbara L. Wilson, some rights reserved (CC BY-NC), uploaded by Barbara L. Wilson

Attribution © Barbara L. Wilson some rights reserved Uploaded by sedgequeen Source iNaturalist Associated observations Photos / Sounds What Prickly Sowthistle (Sonchus asper) Observer sedgequeen Date January 2, 2022 11:55 AM PST Place Corvallis, OR, USA (Google, OSM) Date Added January 4, 2022 06:21 PM PST Description Weeds of Oregon State University. 2 IDs Research Grade View Sizes small medium large original Copyright