Myrcene
Myrcene is the most abundant cannabis-derived terpene and has an earthy flavor. Hops, mangoes, and lemongrass all contain high levels of myrcene. Myrcene may contribute to the couch-lock effect of Indica strains, making high-myrcene hybrids useful as sleep aids or muscle relaxants.
Indica strains like White Widow and Bubba Kush contain ample amounts of myrcene.