Traditional oregano is one of the most common herbs in modern kitchens. Ever present in Italian cuisine, it’s earned the nickname “the pizza herb”, with its minty undertones justifying its membership in the mint plant family Lamiaceae.
Mexican oregano, on the other hand, is from a different plant family altogether, Verbenaceae. You’ll also find Lemon Verbena in this family, so as you would expect Mexican Oregano has similar citrus-like undertones. It also might taste more grassy or earthy to you.