Also known as Indigo weed, this flowering plant grows throughout Canada and North America. Constituents include polysaccharides, which have been shown to enhance antibody production and also demonstrate other immunomodulatory activities, which support its anti-infective use.

Wild Indigo is used to treat infections of the respiratory tract such as tonsillitis and pharyngitis, particularly with associated catarrh. It is also used as a mouthwash for aphthous ulcers and sore gums.

This herb is also antimicrobial, antiseptic, antipyretic, laxative and acts as a mild cardiotonic.

Found in Potter’s Elixir of Echinacea Plus.