Noun
A plant of the genus Marrubium (M. vulgare), which has a bitter taste, and is a weak tonic, used as a household remedy for colds, coughing, etc.
Source: Webster's dictionaryI record my radio show, and my staff makes me a nice lunch in the kitchen, usually fish - whatever's freshest and line-caught - and a salad. I drink water and herbal tea, a blend of catnip, elderberry, and horehound. Martha Stewart
Gallery Wild horehound flowers foliage of young plants Horehound bug, a common insect that feeds on White Horehound References Further reading *Everist, D.L. (1981) Poisonous Plants of Australia. 3rd edn (Angus & Robertson: Sydney). Source: Internet
Horehound also boosts immunity and is said to thin mucus in the bronchial tubes and lungs. Source: Internet