Spearmint oil, hereinafter referred to as oil, means essential oil extracted by distillation from plants, grown in the production area, of the genus Mentha, species Cardiaca (commonly referred to as Scotch Spearmint), Spicata (commonly referred to as Native Spearmint), or such other species, grown in the production area, that produce a spearmint flavored oil. Oil shall be segregated into the following classes: