Medical Marijuana Card Space Coast Cannabis is a plant commonly known as marijuana, weed, pot, or grass. Hundreds of components are present in this plant. The two most important and well-researched constituents are THC tetrahydrocannabinol and CBD cannabinoids. The medically beneficial component is CBD and does not change the state of mind. While THC is the culprit for making you high. In medical marijuana, the percentage of THC is controlled and benefits are utilized with the least side effects. Cannabis indica is used for relaxation purposes.