Common Comfrey Invasive Plant Information


Common Comfrey has been reported in the following 35 states:

Colorado, Connecticut, District Of Columbia, Georgia, Idaho, Illinois, Indiana, Kentucky, Maryland, Minnesota, Montana, New Hampshire, New Mexico, North Carolina, Pennsylvania, Utah, Vermont, Wisconsin, Wyoming, Oregon, West Virginia, Arkansas, California, Delaware, Maine, Massachusetts, Michigan, Missouri, New Jersey, New York, Ohio, Rhode Island, Tennessee, Virginia, Washington


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Information about Common Comfrey:


The following information is licensed as Creative Commons content from Wikipedia and the USDA.
More information about Common Comfrey may be found here, or from the US Department of Agriculture.

Symphytum officinale is a perennial flowering plant of the genus Symphytum in the family Boraginaceae. Along with thirty four other species of Symphytum, it is known as comfrey. To differentiate it from other members of the genus Symphytum, this species is known as common comfrey or true comfrey. Other English names include Quaker comfrey, cultivated comfrey,boneset, knitbone, consound, and slippery-root. It is native to Europe and it is known elsewhere, including North America, as an introduced species and sometimes a weed. The flowers are mostly visited by bumblebees.

The hardy plant can grow to a height of 1.3 m (4 ft).
Symphytum officinale roots have been used in the traditional Balkan medicine internally (as tea or tincture) or externally (as ointment, compresses,or alcoholic digestion) for treatment of disorders of the locomotor system and gastrointestinal tract. The leaves and stems have also been used for the treatment of the same disorders, and additionally also for treatment of rheumatism and gout.
Comfrey has been used in folk medicine as a poultice for treating burns and wounds. However, internal consumption, such as in the form of herbal tea, is discouraged, as it has been highly debated about whether it can cause serious liver damage.


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Reported Urban
Infected Regions:

Ketchikan, AK
Sitka, AK