Spearmint (Mentha spicata)
https://www.britannica.com/plant/Mentha Spearmint ( Mentha spicata ) grows to about 90 cm (3 feet) in height, with open spikes of pink or lilac flowers and stalkless leaves; it has the characteristic mint fragrance. Peppermint ( Mentha × piperita ), a hybrid between spearmint and water mint, has a heavy scent, stalked leaves, and reddish lilac flowers in dense spikes. 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 metre (about 3.3 feet) in height.