An invasive plant is ” an alien species (non-native) whose introduction does or is likely to cause economic or environmental harm or harm to human health.”
Highly invasive plants that are threats particularly to agricultural production and clog waterways are considered ‘noxious‘. These plants are highly regulated and are illegal to buy, sell, or grow.
Why are invasive and noxious plants a problem?
According to the United States Forest Service invasive and noxious weeds are a problem for …
||Drought tolerant Field bindweed is a common noxious weed that is extremely difficult to control. Photo credit: AnnJ-KY Flickr CC BY-NC-ND 2.0
Weeds are plants that frustrate gardening or landscaping goals. Like other plants, weeds are categorized as perennial, annual, grassy, broadleaf, and woody, and are managed accordingly.
Unfortunately, some weeds are so aggressive and difficult to control that they are labeled ‘noxious’.
Executive Order 13112 (February 3, 1999) identifies noxious weeds as “an alien species whose introduction does …