gatekeeper is correct. It could be a local strain somewhere. There are thousands of strains out there and new ones being bred up all the time. There is no real naming convention. Some folks believe that the name should reflect the cross. Like pineapple express was a male pineapple crossed with a female train wreck plant. Otherwise it would train pine or train apple or some such if the male was train wreck and the femail was pineapple. But where is the rule book.