Los Angeles County, which has seen a whirlwind expansion in medical marijuana dispensaries this year, has notched another marijuana milestone. The county has moved to No. 5 for the amount seized in the state's annual eradication campaign, with 340,187 pot plants uprooted -- more than a fourfold increase.

Statewide, the 27-year-old effort, known as the Campaign Against Marijuana Planting, found and destroyed almost 4.5 million plants in 41 counties, up from 2.9 million seized in each of the two prior years' growing season. The amount has climbed steadily since 1996, when California voters approved the nation's first medical marijuana law.

latimes.com