While it is thought to be crossed from Thai and Nepalese sativa landraces by U.S. breeders, many have laid claim to this strain’s creation. Chemdawg’s origin stories include one account of a complicated seed exchange among fellow growers at a Grateful Dead concert and another tale pinning the strain’s parentage on a Colorado strain called Dog Bud (so named for its tendency to make the smoker roll over like a dog). Whatever its beginnings, Chemdawg has become a staple in the U.S. cannabis market for its unique taste and upbeat, energetic high. It has also been used to crossbreed several popular and successful strains. Chemdawg’s THC content has been measured at between 15% and 20%.