INDICA & SATIVA

There is an enormous amount of contradictory and confusing information about what indica and sativa types are and what medical properties correspond to these categories. The confusion is not just among the cannabis community; the scientific community can’t agree, either. Various researchers say cannabis is one, two, or three different species; some divide cannabis into two species, indica and sativa, but then put all drug types including those we think of as indica and sativa into the indica category. What little agreement there is: some cannabis strains are tall and skinny, with narrow, light green leaves. These are generally assigned by the medical marijuana community to the sativa category, and seem to originate in the hemp that grew in Europe centuries ago. Other marijuana strains are bushier, with wider, dark green leaves. These are assigned to the indica category and seem to have originated in India and the middle east. Indicas generally are grown indoors, have higher yields than sativas and are usually easier to grow. Sativa drug strains appear to be a very highly bred subgroup of cannabis plants; they have been selected for generations for only the strongest versions of the THC gene, and the CBD gene has been virtually eliminated. They are the purebreds of the marijuana world; the strains have identifiable characteristics, and if you cross two plants of the same strain, the seeds will run relatively true to the parent. Indica drug strains, by contrast, seem to have been less highly inbred; there is more genetic variation within and between strains, and the CBD gene is still present in many strains. Seeds are less likely to run true to the parents, and the results of crossbreeding are less certain (and more potentially interesting) than crosses between sativa strains. High levels of THCV are also more common among indica strains.