Cannabis plant comes in different varieties We already know that the cannabis plant comes in different varieties, the most common of which is Cannabis sativa. This species is distinct from others in many ways. In this article, I would like to focus more on one aspect of the Cannabis sativa that makes it different: the hash oil. Hash oil comes from the extract of the cannabis Sativa. It is a product of solvent extraction. In terms of THC content, the hash oil is the most potent form of ...