Wide-leafed Cannabis indica plants in India, Afghanistan and Pakistan are traditionally cultivated for the production of hashish. Pharmacologically, the wide-leafed "indica" landraces tend to have a higher cannabidiol (CBD) content than "sativa" drug strains. Most commercially available "indica" strains have been selected for low levels of CBD (which is not psychoactive), with some users reporting more of a "high" and less of a "stoned" effect from "indica" compared to "sativa". Differences in the terpenoid content of the essential oil may account for some of these differences in effect. Common "indica" strains for recreational use are 'White Widow' and 'Northern Lights'.
A recent genetic analysis included both the narrow-leaflet and wide-leaflet drug "biotypes" under C. indica, as well as southern and eastern Asian hemp (fiber/seed) landraces and wild Himalayan populations.