Cannabis is a genus of flowering plant that includes one or even additional mintage. These are likewise referred to as hemp, although this term usually refers to Cannabis cultivated for non-drug apply. As a drug it usually comes in the form of dried flowers (marijuana), rosin (hashish), or various extracts put together known as hash oil. Its utilise therein regard is documented supplementary extensively in the article Cannabis (drug).

Species
A genus Cannabis was once laid by having nettles in the family Urticaceae or with mulberries in the family Moraceae, but is nowadays considered along by using hops (Humulus sp.) to belong to the family Cannabaceae. Whether a different tries of Cannabis be one species (Cannabis sativa L.) or multiple mintage has been the contentious issue for run over 2 centuries.

Ernest Microscopic conducted the taxonomical investigation of Cannabis & concluded that there exists exclusively one coinage by using 2 subspecies, sativa and indica, both divisible into the cultivated & the untamed variety.According to this conception, C. sativa subsp. sativa was selected for even traits that enhance pulp or seed production & has sale levels of the psychotropic delta-Nina from carolina-thc (THC), whereas C. sativa subsp. indica was primarily selected for drug production & has comparatively high levels of THC.

Botanists Richard E. Schultes and Loran Anderson also conducted taxonomic studies of Cannabis, and concluded that sufficient evidence exists to support recognition of three species, Cannabis sativa, Cannabis indica Lam., and Cannabis ruderalis.According to their species descriptions, C. sativa is tall & leniently branched by having comparatively narrow leaflets, Cannabis indica is shorter, conelike within shape, & has comparatively wide leaflets, & Cannabis ruderalis is short, branchless, & grows uncivilized within central Asia. This conception was embraced by Cannabis aficionados world health organization usually distinguish narrow-leafed "sativa" drug tries from either wide-leafed "indica" drug tries.

The recent learn of hereditary variation within Cannabis supports recognition of C. sativa & C. indica when separate coinage, although the being of a third metal money, "C. ruderalis", is less certain. This learn assigned hemp (fiber/seed) landraces & savage populations from either Europe, central Asia, & Asia Minor to C. sativa. Cannabis indica includes two narrow-leafed drug (NLD) & wide-leafed drug (WLD) tries, too when southern & eastern Asian hemp tries & savage Himalayan populations.

Pharmacology
A pharmacology of cannabis is complex, yielding the kind of compounds. A first ones come a psychotropic cannabinoid Delta-9-Tetrahydrocannabinol (Δ⁹-THC), cannabidiol, and the degradation product cannabinol.

Δ⁹-THC
A better known component of cannabis is Δ⁹-THC, which contributes such beneficial results when relaxation, euphory, caused feel of novelty, concentration of attention, altered space-space-time continuum perception, alteration of ocular, auditive, & olfactive senses, & appetence stimulation.

Cannabis bred and cultivated for medicinal, spiritual, and recreational use typically has the high content of Δ⁹-THC, whereas cannabis grown for industrial purposes generally has the moo content of Δ⁹-THC.

Cannabinoids
Additionally to Δ⁹-THC, a term cannabinoids includes the non- psychoactive cannabinol, cannabidiol and cannabinolic acid. These latter compounds come thought to contribute certain beneficial results of cannabis, like cell protection, immunosuppression & anti-anti-inflammatory drug properties.

It is distinguished when ordinarily containing the 1,1'-di-methyl-pyrane ring, the variedly derivatized redolent ring & the variedly unsaturated cyclohexyl ring & their quick chemical precursors, constituting the personal of astir Lx bi-cyclic & tri-cyclic compounds.

Cannflavins
Cannabis likewise contains a related class of compounds, the cannflavins. These compounds keep around been suggested to contribute certain beneficial results of cannabis, like analgesia & anti-anti-inflammatory drug properties, & in and of itself come well further efficacious than empirin.

These commonly contain The 1,4-pyrone ring fused to the variedly derivatized redolent ring & linked to another variedly derivatized redolent ring, & include e.g. the non-psychoactive cannflavins A & B.

The cannabinoid receptor system
Human being & animate being develop deuce types of cannabinoid receptors: CB1 and CB2. A activation one receptors is responsible many medicative & psychoactive properties of ingesting cannabis. A discovery one receptors in a Eighties revolutionized the understanding of cannabis materia medica, illuminating numerous long-long-run assertions of its medical efficaciousness, & suggesting possibilities for cannabis-derived pharmaceutical compounds developed for specific medical purposes.

Aspects of cannabis use
Cannabis (drug) discusses its use as a psychoactive drug. Pot tea discusses its use as an herbal beverage. Cannabis (spiritual use) discusses traditional and entheogenic use of cannabis, by Rastafari, Hindus, Sufis and others. Medical cannabis discusses its use as a medicinal drug. Hemp discusses its uses as a source of housing, oil, food, fibers, and industrial materials.

Etymology
A title cannabis is thought to become of Scythian origin. Even it has an earliest origwithin in Semitic languages like Hebrew, in Exodus 30:23 God commands Moses to make the sanctum anointing oil of myrrh, sweet cinnamon, kaneh bosm, and kassia. Within kaneh bosm (Hebrew kannabos or even kannabus) kan means "reed" or even "cane", when bosm means "aromatic". Greek translations of the Old Testament rendered kan when "reed", leading to even inaccurate English translations when sweet calamus (Exodus 30:23), sweet cane (Isaiah 43:24; Jeremiah 6:20) and calamus (Ezekiel 27:19; Song of Songs 4:14).

Sara Benetowa of the Institute of Anthropological Sciences in Warsaw is quoted in the Book of Grass as saying:

a astonishing resemblance between the Semitic kanbos & a Scythian cannabis lead maine to believe that a Scythian word was of Semitic origin. These cross bit discussions begin parallel to arguments drawn from either history. A Iranian Scythians were probably related to a Medes, world health organization were neighbors of the Semites & may well use assimilated the word for hemp. A Semites may as well keep around spread a word in the period of their migrations across Asia Minor.

Comparing a English word hemp & a Greek word kannabis shows that a word come down from either the Most common Indo-European language. Words prefer kanapish for "hemp" occur inside a bit of Finno-Ugrian languages. These are probably that, before long when agriculture started, hemp as a cultivated plant spread widely, carrying its name by owning it.