Case for Legalizing Marijuana What Is Marijuana? Marijuana, a drug obtained from dried and crumpled parts of the ubiquitous hemp plant Canabis sativa (or Cannabis indica). Smoked by rolling in tobacco paper or placing in a pipe. It is also otherwise consumed worldwide by an estimated 200,000,000 persons for pleasure, an escape from reality, or relaxation. Marijuana is known by a variety of names such as kif (Morocco), dagga (South Africa), and bhang (India). Common in the United States, marijuana is called pot, grass, weed, Mary Jane, bones, ....