Blue Dream, Purple Haze, Girl Scout Cookies, Red Headed Stranger, Acapulco Gold, Fruity Pebbles or Pineapple Express… all classic strain names and all of them meaningless.
“Strain names are absolutely misleading with considerable variation in the same cannabinoid content among different specimens of the same strain. You can get the same color and the same smell, but actually levels of the THC and CBD and some of the other compounds could be quite different,” says Robin Marles, Ph.D., chair of the U.S. Pharmacopeia (USP) Botanical Dietary Supplements and Herbal Medicines Expert Committee.
USP has assembled an expert panel of clinicians, scientists and industry representatives from around the world to provide necessary information and guidance on critical quality attributes, including recommendations for naming , all laid out in an article in the Journal of Natural Products, Cannabis Inflorescence for Medical Purposes: USP Considerations for Quality Attributes.
“USP recommendations are entirely focused on the inflorescence of the cannabis plant, popularly known as the flower or ‘the bud.’ And as with any plant product, the first challenge was to determine how to classify the various varieties and subtypes that are currently in use.” said Ikhlas Khan, Ph.D., USP’s Cannabis Expert Panel chair.
USP has elected to recognize cannabis as a single plant species, Cannabis sativa L., with different varieties or subtypes that can then be classified based on their THC and CBD content. The expert panel provided guidance for organizing the plant material into three “chemotype” categories: THC-dominant, CBD-dominant, or intermediate varieties that contain physiologically meaningful levels of both – intending to give prescribers or consumers greater clarity about what substances they are using.