OK USA clone only Blue Cheese is not a line of seeds. It is S1 UK cheese x blueberry #4. Both UK cheese and BB#4 have afghan kush in them which has phenotypes which flower in 5 to 7 weeks because they don't have enough water in afganistan and they only water a few times during flower then they cut it down and make hash. So over thousands of crops they have bread a supper short flowering strain which is in UK cheese because UK cheese is an IBL of skunk and skunk has afghani in it. Bb4 is also heavy in Afghani kush. Hence the progeny of BB4 and an s1 decendant of UK Cheese that had homozygous allels that coded for short flowering because the s1 process chopped off the sativa side of the skunk line leaving a primarily Afghani plant that still had cheese smells but a more kush high and flowered in less than 7 weeks. Created a sweet sticky light blue bud with a blueberry candy cheese smell. It has grayblue/cammo/green leaves that are highly serrated. Highly serrated leaves are an afganica leaf trait BTW.