Many strains are rather high in THCv. I am doing several breeding projects with high THCv strains, including 4 different Durban Poison strains, landrace Vietnamese Black, Jack the Ripper, and Power Plant. THCv has contradicting effects. It acts as a CB1 receptor agonist like THC does in higher doses. In lower doses, it acts as a CB1 antagonist which dulls the high. Which may account for the delayed effects of smoking smoking high THCv strains, or the so called ‘sneaker weed’ effect.
Fairly high THCv strains include:
Pineapple Purps
Vietnamese Black (a landrace)
Willie’s Nelson
Doug’s Varin (short for Tetrahydrocannabivarin)
High THCv strains include:
Durban Poison
Power Plant
Jack the Ripper
Other notable strains with variable levels of THCv include:
Skunk No.1
Dutch Treat
Mexican landraces
GSC
Tangie
Supposedly Steep Hill has done the most research on THCv, but published information is rather scant. As the DEA has deemed Cannabis to have “no medicinal value” and Cannabis is defined as a Schedule 1 narcotic, research is very limited on the cannabinoids (and terpenes/terpenoids) in the USA. Sadly. I read someplace where David Watson said that he has smoked a lot of THCv, and he said that there was no high to it at all by itself. Which would make it like CBD. No high on their own, but mixed with THC, the results vary greatly with them.