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Many dispensaries sell small, "clone" marijuana plants, like this one from Harborside, to patients who wish to grow their own medicine. Under California law, patients can possess a minimum of 6 mature or 12 immature plants, though "maturity" is not defined.

Read the full story: How marijuana became legal

Watch: Roger Parloff on how pot went legit


Last updated September 15 2009: 11:00 AM ET
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