Hemp isn’t just for hippies anymore. Companies are spending more resources to keep up with the growing demand for the crop — which has been recognized for how it helps a variety of products, including clothing, biodegradable plastic, food and building materials. Here are some facts about hemp, which has had a hazy reputation over the years: What is hemp? Many people still confuse hemp with marijuana. Both are strains of the plant Cannabis satvia, but hemp won’t get a person high — because it has such a low count of tetrahydrocannabinol, or THC, the chemical that alters brain functions. Hemp also has a high level of cannabidiol, an anti-psychoactive chemical that actually blocks a high. Confusion in the law Since hemp still contains THC, the U.S. federal government classified it as an illegal drug — and, until recently, was illegal to grow in the states. It wasn’t until the feds passed the 2014 Farm Bill that states were allowed to certify and register universities and state departments to grow industrial hemp for research purposes. The federal bill gives each state the right to determine whether or not farmers can legally grow commercial hemp. So far, 22 states allow farmers…