PROBLEMATIC PLANTS IDENTIFICATION "DIRTY DOZEN" LIST

The Department has many natural areas of parkland and intends to maintain and sustain its ecological character. The name "Dirty Dozen" was given to the twelve plants that pose problems and prevent the establishment of native flora due to their high reproductive rate and accelerated growth. Exotic plants, as well as native vegetation, may be considered a weed if it adversely affects the sustainability of a natural area and/or encroaches into developed landscapes.

These booklets were created to assist Department of Recreation and Parks staff and volunteers in the proper identification of problematic weeds specific to the following locations.