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List of non-native invasive/noxious plants that I battle.

• Rhamnus cathartica (Common buckthorn)
• Vinca major (Greater periwinkle)
• Vinca minor (Lesser periwinkle)
• Digitaria ischaemum (Smooth crabgrass)
• Setaria pumila (Yellow foxtail)
• Alliaria petiolata (Garlic Mustard)
• Heracleum maximum (Giant Hogweed)
• Arctium minus (Common Burdock)
• Aegopodium podagraria (Goutweed)
• Hedera helix (English Ivy)
• Taraxacum officinale (Common Dandelion)
• Plantago major (Greater Plantain)
• Lythrum salicaria (Purple Loosestrife)

Not technically non-native invasive/noxious, but very aggressively relentless and frustrating

• Cardamine hirsuta (Hairy Bittercress)
• Erigeron canadensis (Canada Horseweed)
• Chelidonium majus (Greater Celandine) - this looks extremely similar to Wood Poppy
• Ambrosia artemisiifolia (Common Ragweed)
• Thlaspi arvense (Field penny-cress)
• Barbarea vulgaris (Bitter wintercress/Yellow rocket)
• Myosotis sylvatica (Wood Forget-me-not)
• Complex Solanum nigrum (Black nighshade)
• Sonchus oleraceus (Common milk thistle)
• Ajuga genevensis (Blue bugle)

Plants I find annoying, but may actually be beneficial

• Acalypha virginica (Virginia Copperleaf/Three-seed Mercury)

Resources

• Invasive Ground Covers (English Ivy, Goutweed, Periwinkle)
• Ontario Spring Weeds
• Give Weeds a Chance