Many of the cannabis clubs in San Francisco sell a Purple Haze strain. They sell a lot of other strains too so I don't see why they would lie. From what I understand, it is not a Haze at all but a cross several different strains, at least one of which is Purple. I've also heard that it is not as potent as some of the other purple strains going around, like Purple Erkal or Grandaddy Purple.