Corn mint (Mentha arvensis)

 

Collins, 214; Readers Digest, 285

This is a low to medium height hairy perennial with pointed oval leaves and pretty lilac flowers.  It flowers from July to September and hybridises with other mints.  Crushing the leaves of this mint produces not the pleasant smell when other mints are crushed but a strong acrid spell. Corn Mint is one of the commonest of British mints found away from water.  The upright hairy stems are green and carry pairs of lance-shaped or oval leaves which are stalked and hairy on both sides.