Invasive Species
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Invasive Species of Concern in Maryland
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Asian Bon Leaf
Of Concern In Maryland
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Invasive Species of Concern in Maryland
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Bull Thistle
Cirsium vulgare

Herbaceous biennial that escapes from fields and roadsides into native open habitats, seeds distributed by wildlife
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Additional Resources
arrow Invasive.org

Bull Thistle
Loke T. Kok, Virginia Polytechnic Institute and State University, Bugwood.org
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