Cannabis is a tobacco-like greenish or brownish material made up of the dried flowering tops and leaves of the cannabis (hemp) plant. Cannabis resin or "hash" is the dried black or brown secretion of the flowering tops of the cannabis plant, which is made into a powder or pressed into slabs or cakes. Cannabis oil or "hash oil" is cannabis resin in liquid form. Cannabis is by far the most cultivated, trafficked and abused illicit drug