Indica
Cannabis Indica is a subspecies of the cannabis genus. Indica cannabis strains most likely originated in the Hindu Kush region of India, Pakistan, and Afghanistan.
Cannabis indica is one of the three 'recognised' sub species of cannabis, which also includes Sativa and Ruderalis. Traditional thinking holds that Indica cultivars offer more relaxing and sedative effects than Sativa dominant strains, but the Sativa vs Indica debate and recent research has challenged this notion.
What does the recent research say?
Dr Ethan Russo, a world-leading cannabis researcher, has this to say on the subject -
“There are biochemically distinct strains of Cannabis, but the sativa/indica distinction as commonly applied in the lay literature is total nonsense and an exercise in futility. One cannot in any way currently guess the biochemical content of a given Cannabis plant based on its height, branching, or leaf morphology".
That being said, there is much anecdotal evidence from patients, cultivators, and recreational consumers alike that Indica strains do tend to produce more sedative effects. They are often recommended for nighttime use or for those seeking relief from pain and inflammation.
Why do Indica plants tend to offer more sedative effects?
The current thinking points to the terpenes (organic compounds responsible for the aroma and flavour of cannabis) playing a significant role in the perceived effects of Indica strains.
Certain terpenes such as myrcene, beta-caryophyllene, and humulene are often found in higher concentrations in Indica strains, and are known to offer sedative and anxiolytic (anti-anxiety) effects. This could explain why many patients report feeling relaxed and sleepy after taking Indica strains.
Is there any difference between Indica and Sativa plants?
Yes, the plant morphology (physical appearance) of the two subspecies can vary significantly. Indica plants tend to be shorter, bushier, with wider leaves, whereas Sativa plants are taller, with narrower leaves.
Indica plants generally have a shorter flowering period than their Sativa counterparts, usually between 8 and 11 weeks. Sativa cultivars take longer, usually needing between 12 and 14 weeks for the flowers to fully develop.
They also prefer different climatic conditions, with Indica strains preferring a cooler, less humid growing environment. Sativas do well in a warmer and more humid climate.
To find out if you are eligible for medical cannabis treatment in the UK, check out our fast and free medical cannabis eligibility checker.
If you would like to learn more about medical cannabis in the UK, Releaf is here to help. In addition to this medical cannabis glossary, we have an extensive blog and education hub to explore, both filled with resources that UK medical cannabis patients, prescribers, and educators have been asking for.