Grandaddy Purple (aka Purple Erkal). Considerably more potent than White Widow, Sour Diesel, Silver Haze, etc. Tastes like hash when you smoke it. 100% indica with a super strong, almost narcotic, body stone but unlike a lot of indicas this one will make you seriously twisted mentally. Pretty common in the San Francisco medical cannabis clubs but, since it's only grown from clones, hard to find on the street.