Pyrola minor, known by the common names snowline wintergreen, lesser wintergreen, and common wintergreen, is a plant species of the genus Pyrola.
It included the four genera Chimaphila, Moneses, Orthilia, and Pyrola, and sometimes also the eight genera formerly usually placed in the family Monotropaceae.
Most commercial root beers have replaced the sassafras extract with methyl salicylate, the ester found in wintergreen and black birch (Betula lenta) bark.