Marijuana could very well be THE mega-trend of the next few years, but it’s also one of the most confusing industries for investors.The team from The Motley Fool, takes investors through some of the opportunities and pitfalls of the sector.

There are growers, biotech companies looking to cash in on marijuana’s medical uses AND a sea of companies offering everything from lighting systems to packaging to supply the industry. Tack onto that nosebleed valuations and the uncertain future of federal legalization in the U.S. and it’s hard to parse out which marijuana companies are could be moneymakers and which ones might go up in smoke.