What is the source of winter green and oil?

Wintergreen oil is primarily derived from the leaves of the wintergreen plant, specifically Gaultheria procumbens, as well as from other plants like birch trees. The oil is extracted through steam distillation and is known for its distinct minty aroma, which is attributed to the presence of methyl salicylate. This compound is commonly used in topical analgesics and flavoring agents. Additionally, synthetic methods can also produce wintergreen oil for commercial use.