Parental Lineage of The Bisho Purple Cannabis Strain Classification of the Bisho Purple strain- this is a sativa and indica strain with ratios occurring in equal proportion. The parent plants of the strain are the Ciskei and the Chitral Kush. These are two landrace strains that were developed and bred by Tropical Seeds Company. The Ciskei is of South African origin and is a pure sativa strain. The Chitral Kush, on the other hand, is from Pakistan and is a 100% indica. This will ...