So, that is way we talk about cannabis) Marijuana is one of the most common drugs in the world. The name of the drug varies depending on which cultivar, part of the plant, and method of production the final product was made. Marijuana is growing almost worldwide. There are three main types of cannabis (which u can buy, just send a message): Cannabis sativa, Cannabis indica and Cannabis ruderalis, the latter containing an extremely small amount of psychoactive substances. According to a study by the British medical journal Lancet, marijuana ranks 11th in terms of harmfulness in the list of harmful drugs (alcohol and tobacco occupy 5th and 9th places, respectively).