Menthe is a member of the Lip flower family. They have a strong odeur which is used as flavouring in, for instance; candy, tea, and toothpaste. Mint oil is mainly gained from peppermint and spearmint. Spearmint is the kind of menthe which is mostly sold at the supermarket and groceries.
Tarragon has a bitter, pepper-like, aniseed palate. This is mainly known from sauces like bearnaise, but is also used in vinaigrettes and mustard. The flowers and leafs can be used for making tea which improves the kidney function.
Tarragon is a part of the "Fines herbs" which is a herb melange often used for flavouring soups, eggs, and butter.