A marijuana plant grows legally under lights at the Boulder County Caregivers in Boulder, Colo. Since the medical marijuana law passed, it's been harder for the dealers underground to sell even though their pot is cheaper. Ed Andrieski/AP hide caption

itoggle caption Ed Andrieski/AP

Chefs at The Farmacy's special kitchen in Los Angeles whip up handmade "herbally enhanced" gelatos, butter and other goodies. It's part of the shop's effort to be a high-end wellness boutique -- not just a medical marijuana dispensary. Mandalit del Barco/NPR hide caption

itoggle caption Mandalit del Barco/NPR

Richard Lee has created a multimillion-dollar empire in Oakland, Calif., built largely on medicinal pot. And now, he wants to take it a step further, by turning marijuana into a totally legal, taxable commodity for any Californian age 21 or older. Jeff Chiu/AP hide caption

itoggle caption Jeff Chiu/AP

Prescription For Change? What happens in the Golden State this year could have a big impact on the rest of the country. iStockphoto.com hide caption

itoggle caption iStockphoto.com