Some interesting info I found... thought I'd share it.
"Cannabis seeds strains and their genetic origins
Although hundreds of regional sub-varieties have been developed by skilled home and professional marijuana seeds breeders, the
foundational genetic stock of traditional cannabis seeds strains is well-known and respected. We can think of these genetic precursors as
the basic color palette from which breeders mix and match to create limitless diversity.
Base origins and history of cannabis strains:
Columbian: also known as "Gold," was one of the original sativa imports that fueled the marijuana renaissance in North America
during the 1960's. Ohhhh the sweet smell and taste with a mellow high that can’t be matched. Sativa all the way. I miss the mellow taste,
not to mention the buzz from Columbian Gold. $40.00 an ounce those days. I remember complaining that Gold is all anyone ever had
Thai: sometimes known as Thai Sticks, because this Asian sativa variety produces loose clusters which are often woven onto sticks of
bamboo or cannabis stems. Often called Buddha Bud Thai stick and came wrapped on a stick with a weird green or red thread. One hit
wonder for sure. Hybridized and crossed Thai marijuana seeds are still available on the Dutch online market.
Jamaican: these mostly sativa plants are fast-growing and reputed to produce a stimulating high. Jamaican is probably the result of
crosses of Indian ganja, which arrived with the Indian immigrants who came to the country. The term for marijuana in Jamaica is ganja,
the same as in India. The traditional Jamaican term for the best weed is Kali, named for the Indian killer goddess.
Mexican: the war on drugs has severely afflicted Mexican indigenous production. Some of the best cannabis used to come from
Mexico, but these days "Mexican Brown brick weed" has become synonymous with "schwag." Good Mexican is a Sativa offshoot, and
even though its THC is degraded by bricking and shipping, it can be a potent and hardy plant when raised in captivity.
Cambodian and Chinese: these cannabis varieties are often problematic. In China, cannabis is cultivated for hemp fiber. In Cambodia,
Vietnam and nearby countries, plants often tend to be hermaphroditic, which means that they develop male and female flowers and if left
unchecked can fertilize themselves. Some breeders allege that using seeds from mostly-female hermaphroditic parents will produce seeds
that favor the female gender. Unfortunately, such seeds also tend to be hermaphrodites, resulting in compromised floral development and
resin production.
African: South Africa is becoming one of the world's top pot producers. Some experts allege that South African pot contains a deviant
THC molecule which produces super-hallucinogenic highs. Durban Poison is a South African strain. The more northern parts of Africa
also produce regional varieties; the further north you go, the more likely the strains are to be Indicas. Ghana is famous for its marijuana
cultivation. Many African cannabis seeds, original strains and hybridized ones can be purchased online.
Afghani: These are some of the first seed types collected by European and American cannabis researchers during the 1960's hippie era.
Afghani and Hindu Kush are indicas which grow fast, have huge leaves, and produce a skunky, mentally-crippling high. These two
varieties have become very popular with many commercial growers. Still one of widely sold marijuana seeds strains online.
Hawaiian: Island strains, such as Maui Wowie, used to be readily available. Then the DEA started a massive air war against Hawaiian
growers, and these varieties became scarce. They are now used mainly in crosses, and often lean toward the Sativa end of the spectrum.
Unless you buy from a seed bank or breeder, it's hard to know for sure which of the above varieties you have in your private marijuana
seed stash. The size and shape of leaves, maturation characteristics, and the visual appearance of floral clusters are some of the most
reliable ways to determine what lineage your seeds come from."