Invasive Species

Spotted Knapweed

Photo: Rob Routledge, Sault College, Bugwood.org 

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Thistles

Photo: Alex Katovich, Bugwood.org 

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Canada Thistle

Musk Thistle

Plumeless Thistle

Exotic Bush Honeysuckles

Photo: Chris Evans, University of Illinois, Bugwood.org 

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Amur Honeysuckle

Japanese Honeysuckle

Morrow's Honeysuckle

Tatarian Honeysuckle

Phragmites/Common Reed

Photo: Leslie J. Mehrhoff, University of Connecticut, Bugwood.org 

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Common Buckthorn

Photo: Richard Webb, Bugwood.org 

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Glossy Buckthorn

Photo: Gil Wojciech, Polish Forest Research Institute, Bugwood.org 

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