Card-carrying medical marijuana patients eager to learn more about Kief, in jar, at Los Angeles' first-ever cannabis farmer's market at the West Coast Collective medical marijuana dispensary, on the fourth of July, or Independence Day, in Los Angeles, California on July 4, 2014 where organizer's of the 3-day event plan to showcase high quality cannabis from growers and vendors throughout the state. Kief, which refers to the resin glands of cannabis that accumulates from sifting the loose dry cannabis flower with a sieve or mesh screen, has traditionally been pressed into cakes and called hashish. AFP PHOTO/Frederic J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)(credit: FREDERIC J. BROWN/AFP/Getty Images)