Maine Department of Environmental Protection.
Kansas Department of Wildlife, Parks, and Tourism.
University of Maryland. Home and Garden Information Center.
New York Codes, Rules, and Regulations.
Kansas Department of Wildlife, Parks, and Tourism.
Maine Department of Agriculture, Conservation and Forestry.
North Carolina Native Plant Society.
Kansas Native Plant Society.
Maryland Invasive Species Council.
New York Department of Environmental Conservation.
A regulation was adopted in 2014 that prohibits or regulates the possession, transport, importation, sale, purchase and introduction of select invasive species. The purpose of this regulation is to help control invasive species, a form of biological pollution, by reducing the introduction of new and spread of existing populations.
North Carolina State University. Cooperative Extension. Going Native: Urban Landscaping for Wildlife with Native Plants.
Maine Department of Agriculture, Conservation, and Forestry. Maine Natural Areas Program.
Maine Department of Environmental Protection.
North Carolina Administrative Code.
North Carolina Department of Agriculture and Consumer Services.
New York State Agricultural Experiment Station.
Kansas Department of Agriculture.
Maine Department of Agriculture. Division of Plant Industry.