MARIJUANA VS HEMP
The main difference between hemp plants and drug plants is resin content. Industrial hemp plants are low-resin plants. Drug plants are high-resin plants. “Marijuana” (spelled with a ‘j’ or ‘h’) is the colloquial name for the flower tops of high resin cannabis.
Industrial hemp varieties are typically grown from pedigree seed, yielding as many as one hundred tall, skinny, bamboo-like plants (with skimpy foliage) per square meter. These plants are machine harvested and manufactured into many different products like paper, cloth, and edible oil.
The resin content is the key factor that distinguishes marijuana from industrial hemp. Today, however, federal law includes a recently added caveat that officially characterizes industrial hemp as having no more than 0.3 percent THC by dry weight. These small amounts of THC do not have an intoxicating effect.