Wintergreen

Wintergreen refers to several sorts of plants which produce a pungent oil that's used to flavor a variety of products including candy, gum, medicine, etc. Wintergreen is also known as checkerberry. These plants include:


 * most species of the family Pyrolaceae, particularly those in the genus Pyrola;
 * some species of the genus Gaultheria in the family Ericaceae;
 * some species of the genus Betula in the family Betulaceae, particularly those in the subgenus Betulenta;
 * all species of the family Spiraea, also called the Meadowsweets.