"I think the weed was sticking out of the window," said Sgt. Jonathan Bellusa.
Officers stopped the van at around 9:50 a.m. at Embarcadero Street and Fifth Avenue, Bellusa said. He estimates that the marijuana plants probably have a street value of about $20,000.
The driver, a man in his 50s, was arrested and sent to North County jail, Bellusa said.
