Invasive Species
Canada thistle
Despite its name, this invasive thistle is not from Canada. It is believed to have come over from the eastern Mediterranean region. It was likely one of the first weeds that early settlers imported to North America.
Cynoglosse (« herbe à corne »)
European swallow-wort, most commonly known as dog-strangling vine, is a member of the milkweed family. Despite its name, it doesn't pose any real threat to dogs.
Emerald ash borer
The emerald ash borer (EAB) is a green beetle that was first discovered in North America in 2002. It is native to Asia and is a threat to the entire North American Fraxinus genus, commonly known as ash trees.