ANNAPOLIS -- The Maryland Senate on Thursday passed a measure to ban synthetic forms of marijuana.

The measure, which passed unanimously, bans products sold as potpourri and labeled with names like "Scooby Snax," "K2" and "Spice." Chemicals sprayed on the leaves mimic the effects of marijuana when smoked.

"It's actually the psychotic parts of marijuana, so it just prohibits the worst parts," said Sen. James Brochin, D-Baltimore County, in urging his colleagues to vote for the bill.

Though the proposal passed without opposition in the Senate, a nearly identical bill was killed in the House Judiciary Committee.