Marijuana is a green, brown, or gray mixture of dried, shredded leaves,Operating A Seamless Gutter Machine., stems, seeds, and flowers of the hemp plant (Cannabis sativa). Cannabis is a term that refers to marijuana and other drugs made from the same plant. Other forms of cannabis include sinsemilla, hashish, and hash oil. All forms of cannabis are mind-altering (psychoactive) drugs. The main active chemical in marijuana is THC (delta-9-tetrahydrocannabinol). ow long does marijuana stay in your system??This question is asked by many different people, and for good reason. Marijuana (pot, herb, weed, grass) is the most commonly used and tested for drug in the United States and several other countries as well,Beijing Tantric Massage. Marijuana effects on the user and detection time depend...