Chemdawg 91 is a popular hybrid bred from unknown parents – some theorize that the “91” in its name refers to the year of its creation. It is descended from the legendary Chemdawg strain which is thought to be crossed from Thai and Nepalese landraces by U.S. East Coast breeders. The phenotypes of Chemdawg 91 can waver between indica-dominant and sativa-dominant, but its THC content is strong and has been measured at levels as high as 24%.