Seeking to overturn the city's medical marijuana ordinance even before it takes effect, a loose-knit coalition of Los Angeles collectives is quietly gathering signatures to force a referendum on the law.

The scrappy, largely volunteer effort faces a Monday deadline to turn in 27,425 valid signatures.

"We're getting down to the wire here," said Dan Halbert, who runs Rainforest Collective in Mar Vista and has coordinated the campaign. "It's going to be close."

latimes.com