Cannabis vs Marijuana

Cannabis: a tall Asian herb (Cannabis sativa of the family Cannabaceae, the hemp family) that has a tough fiber and is often separated into a tall loosely branched species (C. sativa) and a low-growing densely branched species (C. indica) : hemp sense 1a —used especially for cultivated varieties having high levels of THC

Language matters and the word marijuana has a lot of baggage and negative connotations.