Canada Thistle (Cirsium arvense)

Above: Canada Thistle photographed in Carroll Co., Maryland (6/16/2007).


Comments: Native to Eurasia, introduced to the U.S. in the 1600s, probably with crop seed shipments.


Go to Top

Fatbirder's Top 1000 Birding Websites






All photos 2001-2024 © www.billhubick.com