i just noticed ppl are pointing u in the direction of the nirvana dp.. im not sure if that's what you have but as i recall you saying they were sent from south africa I would suppose their either a very early, never hybridized 100% african sativa known simply as 'durban' avaible from sensi seeds http://www.drchronic.com/products.asp?recnumber=249 or the 100% also exclusively imbred "durban poison" available from dutch passion http://www.drchronic.com/products.asp?recnumber=28. The nirvana durban poison is 'durban' x nirvana's skunk #1 (its not an early dutch skunk, the description just tries to make it sound nice) still quite potent, but NOT durban poison.