Typically, a menu board lists a dozen or more varieties, called strains, with names that sound like punch lines from a Seth Rogen movie. From the subdued Blue Dream to the upbeat and euphoric Berry White, the names give almost no indication of the drug's effect or strength.

Knowing the difference between the two major species of marijuana, sativa and indica, may help newbies pick a product that best fits their medicinal needs. The characteristics of each are, however, hugely speculative and based on user-reported experiences.

Sativa and indica strains originated from different parts of the world. Sativa, with its long, thin leaves, is believed to have grown in a hot, jungle-like geography. The short and bushy-leafed indica evolved in drier conditions.

Ask any "budtender" or black-market dealer and they will tell you the differences in how these two strains affect the body and mind are easy to spot.

Sativa strains produce a rush of energy that leaves people feeling energized and uplifted, according to strain-review site Leafly. It's a good pick if you're heading to a Rihanna concert or penning the great American novel, but not ideal for toking before bed.