A greenhouse full of marijuana plants is seen at Apothecary Extracts in Beggs. The owners also have an operation in Colorado. Both operations use tags with barcodes to track the plants from seed to consumer sales. (Whitney Bryen/Oklahoma Watch) Backers of an initiative petition to legalize recreational marijuana in Oklahoma became unwitting guinea pigs in a new process that was meant to speed up and automate the state?s antiquated signature verification system, but a series of delays compounded to keep it off the November general election ballot.