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Himalayan Balsam

Himalayan Balsam

Himalayan Balsam Impatiens glandulifera  Home 9 2021 9 March ( Page 7 ) Background Himalayan balsam is an annual herb, native to the western Himalayas. In the early 1800s it was introduced to many parts of Europe, New Zealand and North America as a...
Giant Hogweed

Giant Hogweed

Giant Hogweed Heracleum mantegazzianum  Home 9 Tag: invasive plants ( Page 2 ) Background Giant Hogweed (Heracleum mantegazzianum) is a perennial plant and a member of the carrot family. It is a garden ornamental from southwest Asia that is naturalizing...
Garlic Mustard

Garlic Mustard

Garlic Mustard Alliaria petiolata  Home 9 2021 9 March ( Page 7 ) Background Garlic mustard is an invasive herb native to Europe. It was brought to North America in the early 1800s for use as an edible herb. Available in the early spring and high in...
Dog-Strangling Vine

Dog-Strangling Vine

Dog-Strangling Vine Vincetoxicum rossicum & Vincetoxicum nigrum  Home 9 2021 9 March ( Page 7 ) What is Ontario Doing? To prevent the further spread and introduction of these unwanted invaders in the province, Ontario has regulated Dog-strangling...
Common Buckthorn

Common Buckthorn

Common Buckthorn Rhamnus cathartica ; Home 9 2021 9 March ( Page 7 ) Background Common buckthorn (also known as European buckthorn) is a small shrub or tree native to Eurasia. It was introduced to North America in the 1880s as an ornamental shrub and was...