Examples from the Web for water mint
Was that the dried sweetness of balsam,—the pungent odor of pennyroyal and water-mint,—the clean, resinous fragrance of the pines?Hope Mills|Amanda M. Douglas
The water-mint and scorpion-grasses remain far into November, and the former scents more sweetly as the season wanes.A Cotswold Village|J. Arthur Gibbs
Was it the damp that brought the perfumes of the moorland so distinctly toward them—the bog-myrtle, the water-mint and wild thyme?