water mint

Water mint (M. aquatica) commonly grows in ditches and has rounded flower spikes and stalked hairy leaves. Wild mint (M. arvensis), native in North America and Eurasia, reaches about 1 meter (about 3.3 feet) in height.

…plant is a hybrid between watermint (Mentha aquatica) and spearmint (M. spicata) and is particularly cultivated in Europe, Asia, and North America. Natural hybridization among wild species has yielded many varieties of peppermint, but only two, the black and the white, are recognized by growers. Black peppermint, also called English…