Afghani strain lineage traces back to the pure indica landrace cannabis from the Hindu Kush mountains, a staple for breeding potent, resinous strains known for deep relaxation, forming the genetic base for many hybrids like Northern Lights, Blueberry, and G13. It's considered a foundational "hash plant" with earthy, hash-like aromas, developed naturally over centuries in harsh conditions, and smuggled to the West in the 1970s.