In pot market, a hazy line between legal and not

LOS ANGELES » In the five years since California voters approved a broad legal marketplace for marijuana, thousands of greenhouses have sprouted across the state. But these, under their plastic canopies, conceal a secret.

The cultivator who operates the grow north of Sacramento holds a coveted state-issued license, permitting the business to produce and sell its plants. But it’s been virtually impossible for the grower to turn a profit in a struggling legal industry where wholesale prices for cannabis buds have plunged as much as 70% from a year ago, taxes approach 50% in some areas and customers find far better deals in the thriving underground marketplace.

So the company has two identities — one legal, the other illicit.