Officially, there is only one species of marijuana: cannabis sativa. The original cannabis sativa often grows to 6' or more in height and takes some months to come to maturity. Though it can be forced to maturity more quickly under controlled conditions, it will still attain a substantial height or length of stem. It can be cultivated for higher THC content, or grown for fiber or hemp, with virtually no THC at all.
Starting in the 60s and proceeding to the present day, serious marijuana growers have sought to breed a type of cannabis that would have a smaller habit and quicker maturation, and be better suited to indoor cultivation. And of course they also worked to increase potency.
At some point, C. sativa was crossed with a plant called ruderalis, a cannabis cousin with virtually no THC content that grows on the steppes of Russia and in Hungary. Ruderalis is a small, upright bushy plant that tolerates cooler temperatures, and crossing c. sativba with it has yielded a distinctly different type of marijuana.
While botanists and mainstream science fail to recognize the difference, cannabis indica is regarded as a separate strain by marijuana growers and informed pot-heads. The sativa types, with their longer growing season and very tall form, produce marijuana that is known for its light "head" high. Indica types grow short and fast, producing resinous, sticky, stinky buds that yield a heavy "body" high.
Although illegal in most countries, there are many sites on the net that offer marijuana seed for sale. The naming and information on many of the strains that are offered makes it clear there really are a number of different "types" of marijuana, varying not only THC content, growing conditions, and habit, but also in the basic nature of the "high" they produce . There are also many sites on line to read about continuing breeding efforts.
JohnDoe: Sativa and ruderalis are certainly separate species. Indica is not yet a part of the official taxonomy. Sativa is specifically an equatorial plant (rather than tropical) and ruderalis does come from the steppes. Indica is the result of specialized breeding of the two other species and is more tolerant of a range of growing environments. If you feel that my answer was incorrect or inadequate, you need to write your own answer to the question rather than use the comment area.
Comments
C. Sativa, C. Indica and C.Ruderalis = Different Species. Sativa from tropics, Ruderalis from Russia, Indica in the middle.
by John Doe on January 27th, 2005
and you forgot Afghanica. But all are C. SATIVA var. Sativa averages 10 feet... at least in my pole barn it does :) i've had as big as 15! Just so you don't have a hissy fit, first.. it's medicine for patients, I am one as well, and..... nice article Merry. Very infomative.
by cylanoid on May 10th, 2010
so ...if science proves that certain strains can only grow in certain areas and certain then how can they all be the same species....you make no sense man...no one ever crossed a ruderalis with a sativa...wouldnt do anything...it wouldjust shorten the flower period, it wouldnt effect the thc content or the cbd or cbh content....
by Adam_S2998 on November 23rd, 2010