Because shortening the ripening time equated to more money more quickly, the original pure sativa was adulterated with indica.
There are pockets of the pure sativa Durban Poison, but you cannot depend upon the strain name to know it's the pure original.
I know some guys who are currently attempting to look at the DNA of as many strains as possible. They have access to some of the original landrace strains before hybrids became so popular in order to drive more financial gains and they are attempting to compile a complete database of genetic information for the strains due to the multiple poly-hybrid nature of today's cannabis.
It's rare to find anything pure these days. Many heirloom varieties are truly lost forever.
Keep in mind, I'm not saying what is sold as Durban Poison is not good. In fact, all of the newer Durban Poison I've imbibed has been tremendous. I just can tell it's been adulterated with indica since the late 70s. I have had an example of an illicit Durban Poison about a decade ago that was still pure, though, so I know it's out there somewhere. It's quite possible what you get is also a pure Durban Poison, too.
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