That's what a South Dakota sheriff just told me you could get from one marijuana plant. Hmmm, if a joint is somewhere between one-half gram and one gram, that comes to somewhere between 6,500 and 13,000 grams, or 15 to 30 pounds. I would like to meet the grower who can produce such copious quantities. The indoor growers I know estimate they can get maybe one gram of usable marijuana per watt of light in a growing cycle. That means a person growing plants under a 1000 watt light will produce perhaps two pounds of smokable bud, but that typically comes from numerous plants under the light--and if the grower knows what he's doing and everything goes just right. I'm not sure where they're getting a 15 or 30 pounds from one plant. Maybe the sheriff know of some monster mutant strain indigenous to the Dakotas, but somehow I doubt it You can read more about this tomorrow in the story I'm preparing on the South Dakota medical marijuana initiative.