English: naturalmedicinalherbs.net :

(Lycopus americanus) Medicinal use of Water Horehound: The whole plant is used as an astringent, hypoglycaemic, mild narcotic and mild sedative. It also slows and strengthens heart contractions. The plant has been shown to be of value in the treatment of hyperthyroidism, it is also used in the treatment of coughs, bleeding from the lungs and consumption, excessive menstruation etc. It should not be prescribed for pregnant women or patients with hypothyroidism. The plant is harvested as flowering begins and can be use fresh or dried, in an infusion or as a tincture.

(Lycopus uniflorus) The whole plant is antitussive and sedative. The roots were a staple food for some native North American Indian tribes. The crisp white tubers can be eaten raw in salads or cooked in soups etc. When boiled for a short time they are said to make an agreeable vegetable, somewhat like Chinese artichokes (Stachys affinis).