Ballota Nigra, or more commonly know as Black Horehound, is a forb/herb (a forb/herb is a non-woody plant that is not a grass) of the genus Ballota. Its duration is perennial which means it will grow year after year. Ballota Nigra or Black Horehound's floral region is North America US Lower 48, specifically in the states of Alabama, Connecticut, Iowa, Illinois, Massachusetts, Maryland, Nebraska, New Jersey, New York, Ohio, Oregon, Pennsylvania, Washington and Wisconsin.
Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming