Difference between revisions of "Cannabis"

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| name = ''Cannabis''
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|familia=Cannabaceae
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| common_names = Hemp, Marijuana, Pot plant
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|genus=Cannabis
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| growth_habit = herbaceous
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|common_name=Hemp, Marijuana, Pot plant, Cannabis
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| high = ?  <!--- 1m (3 ft) -->
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|habit=herbaceous
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| wide =     <!--- 65cm (25 inches) -->
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|Min ht metric=cm
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| origin = ?  <!--- Mexico, S America, S Europe, garden, etc -->
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|Max ht box=2.5
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| poisonous =     <!--- indicate parts of plants which are known/thought to be poisonous -->
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|Max ht metric=m
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| lifespan = annual
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|origin=C & S Asia
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| exposure = ?  <!--- full sun, part-sun, semi-shade, shade, indoors, bright filtered (you may list more than 1) -->
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|lifespan=annual
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| water = ?  <!--- frequent, regular, moderate, drought tolerant, let dry then soak -->
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|exposure=sun
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| features =     <!--- flowers, fragrance, fruit, naturalizes, invasive -->
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|Min Temp Num=13
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| hardiness =    <!--- frost sensitive, hardy, 5°C (40°F), etc -->
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|Temp Metric=°C
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| bloom =    <!--- seasons which the plant blooms, if it is grown for its flowers -->
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|image=Marijuana.jpg
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| usda_zones = ?  <!--- eg. 8-11 -->
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|image_width=240
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| sunset_zones =    <!--- eg. 8, 9, 12-24, not available -->
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|image_caption=Leaf of a ''Cannabis'' plant
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| color = IndianRed
 
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| image = Marijuana.jpg
 
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| image_width = 240px    <!--- leave as 240px if horizontal orientation photo, or change to 180px if vertical -->
 
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| image_caption = Leaf of a ''Cannabis'' plant
 
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| regnum = Plantae
 
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| divisio = Magnoliophyta
 
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| classis = Magnoliopsida
 
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| ordo = Urticales
 
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| familia = Cannabaceae
 
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| genus = Cannabis
 
 
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The genus Cannabis includes the very popular [[Cannabis sativa|''Cannabis sativa'']], which is widely used as a recreational drug.
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[[Image:Cannabis sativa Koehler drawing.jpg|thumb|Cannabis sativa]]
 
[[Image:Cannabis sativa Koehler drawing.jpg|thumb|Cannabis sativa]]
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Latest revision as of 02:57, 14 May 2010


Leaf of a Cannabis plant


Plant Characteristics
Habit   herbaceous

Height: ⇕ 2.5 m"m" can not be assigned to a declared number type with value 2.5.
Lifespan: ⌛ annual
Origin: ✈ C & S Asia
Cultivation
Exposure: ☼ sun
Minimum Temp: ☃ 13°C55.4 °F <br />286.15 K <br />515.07 °R <br />
Scientific Names

Cannabaceae >

Cannabis >


The genus Cannabis includes the very popular Cannabis sativa, which is widely used as a recreational drug.


Read about Cannabis in the Standard Cyclopedia of Horticulture 
Cannabis sativa

Cannabis (the ancient Greek name). Moraceae. Hemp. A widely cultivated fiber plant, and also used occasionally as an ornamental subject, being grown from seeds and treated as a half-hardy annual.

Hemp is dioecious: staminate fls. in axillary panicles, with 5 sepals and 5 drooping stamens and no petals; pistillate fls. in short spikes, with 1 sepal folding about the ovary: lvs. digitate, with 5-7 nearly linear, coarse- toothed lfts.: fr. a hard and brittle achene. C. sativa, Linn., probably native in Cent. Asia, is now escaped in many parts of the world: tall, rough and strong- smelling, 8-12 ft.: lfts. 5-11, linear-lanceolate, toothed, the upper lvs. alternate and the others more or less opposite. Only one species, but various forms have received specific names. In gardens, the form known as C. gigantea is commonest; this reaches a height of 10 ft. and more. The seeds are usually sown where the plants are to stand; but if quick effects are wanted, they may be started indoors in pots or boxes. Hemp makes excellent screens in remote places. It thrives best in a rich rather moist soil.

C. bicolor, Lem. Distinguished from the above by the entire lvs. which are shorter, about 1 in. long, and the solitary fls. with a short, yellow tube, the limb not fringed. The fls. droop, but not vertically. Peru. B.M. 4729. F.S. 4:343. Probably less desirable than the above.—C. pyrifolia Juss. Lvs. generally broader and more toothed than in C. bicolor: fls. as many as 17, in an erect, terminal, compound corymb; calyx red-tipped, nearly half as long as the yellow corolla-tube; corolla about 1 ¼ in. long, with a white limb; stamens long, exserted. Peru.CH


The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.


Cultivation

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Propagation

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Pests and diseases

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Species

Cannabis sativa L.
Cannabis indica Lam.
Cannabis ruderalis Janisch.

Gallery

  • Ruderal Cannabis.

  • Top of Cannabis plant in vegetative growth stage

  • Some Cannabis sativa seeds

  • Dense raceme of carpellate flowers typical of drug-type varieties of Cannabis

  • Cannabis field seized by authorities

References

External links


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