Just like it is with vegetables and fruit, weed genetics have changed with selective breeding. Many strains that were popular in the 60s and 80s have mutated or even completely disappeared. Thus, cannabis has significantly changed over the past decades, being replaced by modern strains with higher THC levels. Here is the list of the rarest pot strains on Earth.
Angola Roja, also known as Liamba, is a very old African sativa. There is a theory that red strains that are often found in Central and South America have originated from Angola Roja. However, marijuana is illegal in African countries, and little weed gets out of the region.
Oaxacan Highland is a Mexican strain that was extremely popular in the 60s and 70s. It is known for its psychedelic effects and pleasant aroma. The stain became endangered and almost disappeared from foreign markets because of hybridization.
In 1970, Colombian Red was included in the list of 40 best cannabis strains in the world. Although many companies are trying to stabilize its genetics, this wild sativa has almost disappeared from circulation.
Lebanese hashish is a fine world-famous strain. It usually comes in two types: red and yellow. The yellow strain contains a higher THC level and is more psychoactive, while the red one is richer in the non-psychoactive CBN. Lebanese strains are extremely difficult to cultivate, so you will probably not find them in your dispensary.
Molokai Frost is not an endangered strain; however, it is hard to get. If you are lucky to find Molokai Frost, you will be able to experience a pleasant cerebral high provided by the THC level of up to 22%.
Although Thai Stick can be easily found in most big dispensaries, the original plant is nowhere to be seen. Fortunately, some seed companies have found a way to have 100% pure Thai landrace sativa.
Roadkill is an indica hybrid with moderate THC amounts. While Roadkill fell out of favor for some time, it is making a comeback.
Black African Magic was also popular in the 70s and 80s. It is famous for its intense cerebral effects. We do hope that seeds of Black African Magic still exist.
Kalamata has a high THC content and produces intense, racy effects. Unfortunately, nowadays you cannot find Greek Kalamata anywhere.
Parvati is an ancient Indian strain used for making hashish in Nepal, Pakistan, and India. Although it has been popular for a long time, the herb is becoming increasingly rare.