Marijuana is a cannabis plant that is harvested for its euphoric, relaxing, and psychoactive properties (primarily due to THC). As opposed to hemp, the seeds and stalks of marijuana aren’t used commercially as a food source, or in the textiles industry. Instead, the plant is cultivated for its highly resinous flowers containing an abundance of cannabinoids. The THC content of marijuana is much higher than it is in hemp.
Marijuana can have up to 30% THC per dry weight. This type of cannabis is classified as a Schedule I substance under the Controlled Substances Act of 1970.
Therefore, the US federal government doesn’t recognize any medical uses of marijuana and claims it has a strong potential for abuse. Marijuana remains federally illegal in the USA, although states have begun passing legislation that legalizes either medical or recreational marijuana use.