What is the strain?

I was given the plant by a friend of a friend and all the guy said is kush... so I'm trying to figure out the strain, Help please :) oh and I'm sorry about the bad picture quality, but the plant has small white flowers, but it is obviously a female.its in its 10 day of flowering.Photo on 10-23-12 at 3.55 PM.jpgPhoto on 10-23-12 at 3.56 PM.jpgPhoto on 10-23-12 at 3.56 PM #2.jpg
 
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