Trichomes
Trichomes are crystal or hair-like structures that grow externally on the flowers and leaves of the cannabis plant. They are important components of the plant, playing a role in defence against predators and environmental stressors and contributing to the production of cannabinoids and terpenes
Why are trichomes important in medical cannabis?
Cannabinoids and terpenes are the two main therapeutic components of medical cannabis, and they are mostly produced in the trichomes. These resinous structures cover the plant's flowers (buds) and 'sugar' leaves (the leaves that grow directly out of the flowers), giving them a frosty or crystalline appearance.
On top of their cannabinoid and terpene production, without trichomes, cannabis plants would be much more susceptible to damage from pests, mould, and harsh weather conditions. Trichomes not only act as a physical barrier against these threats, but they also contain chemical compounds that deter predators and protect the plant.
What are the different types of trichomes?
There are three main types of trichomes produced by cannabis plants - bulbous, capitate-sessile, and capitate-stalked. All three types of trichomes produce resin, but the capitate-sessile and capitate-stalked trichomes are the most abundant and have higher levels of cannabinoids and terpenes.
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.