Cannabis

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Template:Taxobox begin Template:Taxobox image Template:Taxobox begin placement Template:Taxobox regnum entry Template:Taxobox divisio entry Template:Taxobox classis entry Template:Taxobox ordo entry Template:Taxobox familia entry Template:Taxobox genus entry
Template:Taxobox authority new Template:Taxobox end placement Template:Taxobox section subdivision Cannabis indica
Cannabis ruderalis
Cannabis sativa Template:Taxobox end

Cannabis is a genus of flowering plant that includes one or more species. It is also known as hemp, although this term usually refers to Cannabis cultivated for non-drug use. As a drug it usually comes in the form of dried flowers, resin (hashish), or various extracts collectively referred to as hash oil.

Species

The genus Cannabis was formerly placed with nettles in the family Urticaceae or with mulberries in the family Moraceae, but is now considered along with hops (Humulus sp.) to belong to the family Cannabaceae. Whether the different strains of Cannabis constitute a single species (Cannabis sativa L.) or multiple species has been a contentious issue for well over two centuries  Administrator note  Administrator note.

Ernest Small conducted a taxonomic investigation of Cannabis and concluded that there is only a single species with two subspecies, sativa and indica, each divisible into a cultivated and a wild variety  Administrator note. According to this concept, C. sativa subsp. sativa was selected for traits that enhance fiber or seed production and has low levels of the psychoactive delta-9-tetrahydrocannabinol (THC), whereas C. sativa subsp. indica was primarily selected for drug production and has relatively 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   Administrator note  Administrator note  Administrator noteAccording to their species descriptions, C. sativa is tall and laxly branched with relatively narrow leaflets, Cannabis indica is shorter, conical in shape, and has relatively wide leaflets, and Cannabis ruderalis is short, branchless, and grows wild in central Asia. This concept was embraced by Cannabis aficionados who commonly distinguish narrow-leafed "sativa" drug strains from wide-leafed "indica" drug strains.

A recent study of genetic variation in Cannabis supports recognition of C. sativa and C. indica as separate species, although the existance of a third species, "C. ruderalis", is less certain. This study assigned hemp (fiber/seed) landraces and feral populations from Europe, central Asia, and Asia Minor to C. sativa. Cannabis indica includes both narrow-leafed and wide-leafed drug strains, as well as southern and eastern Asian hemp strains and feral Himalayan populations  Administrator note.

Uses

Etymology

The name cannabis is thought to be of Scythian origin. Possibly it has an earlier origin in Semitic languages like Hebrew, in Exodus 30:23 God commands Moses to make a holy anointing oil of myrrh, sweet cinnamon, kaneh bosm, and kassia. Kaneh bosm (Hebrew kannabos or kannabus) "kan" in means "reed" or "hemp", while "bosm" means "aromatic". In the Greek translations of the old testament "kan" was rendered as "reed", leading to English translations as "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: "The astonishing resemblance between the Semitic 'kanbos' and the Scythian 'cannabis' leads to the assumption that the Scythian word was of Semitic origin. These etymological discussions run parallel to arguments drawn from history.

Comparing the English word hemp and the Greek word kannabis shows that the word came down from the Common Indo-European language. Words like kanapish for "hemp" occur in some Finno-Ugrian languages. It is likely that, soon after agriculture started, hemp as a cultivated plant spread widely, carrying its name with it.

References

  1. Template:AnbEmboden, W. A. 1981. The genus Cannabis and the correct use of taxonomic categories. J. Psychoactive Drugs 13: 15–21.
  2. Template:AnbSchultes, R. E., and A. Hofmann. 1980. Botany and Chemistry of Hallucinogens. C. C. Thomas, Springfield, IL., pp. 82–116.
  3. Template:AnbSmall, E., and A. Cronquist. 1976. A practical and natural taxonomy for Cannabis. Taxon 25: 405–435.
  4. Template:AnbSchultes, R. E., et. al. 1974. Cannabis: an example of taxonomic neglect. Harvard University Botanical Museum Leaflets 23: 337–367.
  5. Template:AnbAnderson, L. C. 1974. A study of systematic wood anatomy in Cannabis. Harvard University Botanical Museum Leaflets 24: 29–36.
  6. Template:AnbAnderson, L. C. 1980. Leaf variation among Cannabis species from a controlled garden. Harvard University Botanical Museum Leaflets 28: 61–69.
  7. Template:AnbHillig, K.W. 2005. Genetic evidence for speciation in Cannabis (Cannabaceae). Genetic Resources and Crop Evolution 52: 161-180.