Its definition is that it is the dried leaves and flowering tops of the pistillate hemp plant that yields THC. ... THC is a physiologically active chemical (C21H30O2) from hemp plant resin that is the chief intoxicant in marijuana. ...
Marijuana refers to a mixture of leaves, stems and flowering tops of cannabis sativa8. ... The health risk of smoking the marijuana can be eliminated by eating the plant, or can be reduced by smoking less of a more potent variety of marijuana. ...