water mint

noun

a Eurasian mint plant, Mentha aquatica, of marshy places, having scented leaves and whorls of small flowers
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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?