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Plants of Great Chicago Wilderness

prickly sowthistle 1
Sonchus asper
Common Sow-thistle 2
Sonchus oleraceus

Edited by Renata Leite Pitman, some rights reserved (CC BY-SA)

Photo Credits

  • 1. (c) Bill Lupardus, some rights reserved (CC BY-NC), uploaded by Bill Lupardus
  • 2. (c) Phil Sellens, some rights reserved (CC BY)

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