The aim of the present study was to investigate the morphological diversity and relationship within 17 genotypes of mentha species. Different species of Mentha were collected from different ecological zones of the world. Great variation was observed in stem length with the coefficient of variation of 198.7% and standard deviation of 14.1. Among the 17 mint collection, nine special aromas was smelled including mint gum, strong camphoraceous, mint like, spicy, lemon, pungent, musky and acrid due to the presence of diverse bioactive compounds and essential oils. The present study may help to patronize the essential oil industry on latest scientific techniques. Like other herbs Mentha have diverse aromatic properties that can be explored for utilization in the industry and this information will be helpful for exploitation and development of natural agricultural resources on scientific grounds.