Botany
See also: Cannabis (drug)Cannabis belongs to the genus Cannabis in the family Cannabaceae and includes four species, C. sativa, C. indica, C. afghanica, and C. ruderalis (APG II system). It is typically a dioecious (each individual is either male or female) annual plant (life period: April–September).
C. sativa and C. indica generally grow tall (some varieties reach 4 m) and their females start the production of flowers rich in THC (1% to 29%) as the season changes from summer to autumn. C. ruderalis is very short, produces only trace amounts of THC and flowers independently of the photoperiod and according to age. However, commercial cross-bred hybrids containing both ruderalis, indica and/or sativa genes exist (usually called autoflowering), the "low rider" being the most famous.
Read more about this topic: Cannabis Cultivation
Famous quotes containing the word botany:
“...some sort of false logic has crept into our schools, for the people whom I have seen doing housework or cooking know nothing of botany or chemistry, and the people who know botany and chemistry do not cook or sweep. The conclusion seems to be, if one knows chemistry she must not cook or do housework.”
—Ellen Henrietta Swallow Richards (1842–1911)