Difference between revisions of "Aloe vera"

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{{Taxobox
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__NOTOC__{{Plantbox
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| color = lightgreen
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| latin_name = ''Aloe vera''
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| name = ''Aloe vera''
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| common_names =    <!--- if multiple, list all, if none, leave blank -->
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| growth_habit = ?  <!--- tree, shrub, herbaceous, vine, etc -->
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| high = ?  <!--- 1m (3 ft) -->
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| wide =    <!--- 65cm (25 inches) -->
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| origin = ?  <!--- Mexico, S America, S Europe, garden, etc -->
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| poisonous =    <!--- indicate parts of plants which are known/thought to be poisonous -->
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| lifespan = perennial
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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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| water = ?  <!--- frequent, regular, moderate, drought tolerant, let dry then soak -->
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| features =    <!--- flowers, fragrance, fruit, naturalizes, invasive -->
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| hardiness =    <!--- frost sensitive, hardy, 5°C (40°F), etc -->
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| bloom =    <!--- seasons which the plant blooms, if it is grown for its flowers -->
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| usda_zones = ?  <!--- eg. 8-11 -->
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| sunset_zones =    <!--- eg. 8, 9, 12-24, not available -->
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| color = IndianRed
 
| image = Aloe vera 2web.jpg
 
| image = Aloe vera 2web.jpg
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| image_width = 240px
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| image_width = 180px    <!--- leave as 240px if horizontal orientation photo, or change to 180px if vertical -->
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| regnum = [[Plant]]ae
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| image_caption =     <!--- eg. Cultivated freesias -->
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| divisio = [[flowering plant|Magnoliophyta]]
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| familia = Asphodelaceae
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| classis = [[monocotyledon|Liliopsida]]
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| genus = Aloe
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| ordo = [[Asparagales]]
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| species = vera
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| familia = [[Asphodelaceae]]
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}}
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| genus = ''[[Aloe]]''
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{{Inc|
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| species = '''''A. vera'''''
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''[[Aloe]] vera'', Linn. (''A. perfoliala vera'', Linn. ''A. elongata'', Murr. ''A. barbadensis'', Mill. ''A. vulgaris''. Lam. ''A. flava'', Pers.). Cespitose, the sts. at length 1-1.5 ft. high: lvs. suberect or spreading, gradually narrowed from the base, pale, 2-3 x 12-20 in., irregularly white-blotched and narrow when young and 2-ranked on offsets, the repand margin with weak pale prickles: infl. 2-3 ft. high, often simple; fls. 1 in. long, yellow, the segms. about equaling the oblong tube. Medit. region and intro. generally through the tropics. —The source of "Barbados aloes." Varies in a large Arabian form with broader lvs., taller infl., and fls. shading into orange, var. '''officinalis''', Baker (''A. officinalis'', Forsk., ''A. rubescens'', DC.); a smaller Asiatic form with red-tinged fls., var. '''chinensis''' (''A. indica'', Royle. ''A. chinensis'', Baker); and a hardier garden form of this, var. '''Lanzae''', Berger (''A. Lanzae'', Tod.).
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| binomial = ''Aloe vera''
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{{SCH}}
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| binomial_authority = ([[Carolus Linnaeus|L.]]) [[Nicolaas Laurens Burman|Burm.f.]]
 
 
}}
 
}}
  
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'''''Aloe vera''''' ([[synonymy|syn.]] ''A. barbadensis'' Mill., ''A. vulgaris'' Lam.) is a species of ''[[Aloe]]'', native to northern [[Africa]]. It is a stemless or very short-stemmed [[succulent]] plant growing to 80-100 cm tall, spreading by [[offsets]] and root sprouts. The [[leaf|leaves]] are [[lanceolate]], thick and fleshy, green to grey-green, with a [[serration|serrated]] [[margin]]. The [[flower]]s are produced on a spike up to 90 cm tall, each flower pendulous, with a yellow tubular [[corolla]] 2-3 cm long.
 
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[[Image:Aloe vera.jpg|left|thumb|Flowers]]
 
 
==Cultivation==
 
==Cultivation==
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Aloe vera is relatively easy to care for in cultivation in frost-free climates. The species requires well-drained sandy potting soil in moderate light. If planted in pot or other containers ensure sufficient drainage with drainage holes.The use of a good quality commercial potting mix to which extra perlite, granite grit, or coarse sand are added is recommended. Alternatively,  pre-packaged 'cacti and succulent mixes' may also be used. Potted plants should be allowed to completely dry prior to re-watering. During winter, ''A. vera'' may become dormant, during which little moisture is required. In areas that receive frost or snow the species is best kept indoors or in heated glasshouses.
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{{edit-cult}}<!--- Type cultivation info below this line, then delete this entire line -->
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''A. vera'' has a long history of cultivation throughout the drier [[tropics|tropical]] and [[subtropics|subtropical]] regions of the world, both as an [[ornamental plant]] and for [[herbalism|herbal medicine]]. For its herbal and medicinal uses, many of which are shared with related species, see [[Aloe]]. <!-- change to [[Aloe (herbal remedy)]] when this info is split off to that page --> <br clear = left>
 
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===Food preservative===
 
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Researchers at the [[University of Miguel Hernández]] in [[Alicante]], [[Spain]], have developed a [[gel]] based on ''A. vera'' that prolongs the conservation of fresh produce, such as fresh fruit and [[legume]]s. This gel is tasteless, colorless and odorless. This natural product is a safe and environmentally friendly alternative to synthetic preservatives such as [[sulfur dioxide]]. The study showed that [[grape]]s at 1°C coated with this gel could be preserved for 35 days against 7 days for untreated grapes. According to the researchers, this gel operates through a combination of mechanics (Serrano et al., 2006), forming a protective layer against the [[oxygen]] and moisture of the air and inhibiting, through its various [[antibiotic]] and [[antifungal drug|antifungal]] compounds, the action of micro-organisms that cause foodborne illnesses.
 
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===Medicinal uses===
 
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''A. vera''  has been used externally to treat various skin conditions such as cuts, burns and [[eczema]]. It is alleged that sap from ''Aloe vera'' eases pain and reduces [[inflammation]]. Evidence on the effects of ''A. vera'' sap on wound healing, however, is contradictory (Vogler and Ernst, 1999). A study performed in the 1990s showed that the healing time of a moderate to severe burn was reduced when the wound was treated on a regular basis with ''Aloe vera'' gel, compared to the healing of the wound covered in a gauze bandage (Farrar, 2005). In contrast, another study suggested wounds to which ''Aloe vera'' gel was applied were significantly slower to heal (Schmidt and Greenspoon, 1991).
 
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''A. vera'''s beneficial properties may be attributed to [[glycosaminoglycan|mucopolysaccharides]] present in the inner gel of the leaf, especially [[acemannan]] (acetylated mannans). An injectable form of acemannan manufactured and marketed by Carrington Laboratories as Acemannan Immunostimulant™ has been approved in the USA for treatment of [[fibrosarcoma]] (a type of [[cancer]]) in dogs and cats after clinical trials. It has not been approved for use by humans, and although it is not a drug its sale is controlled and it can only be obtained through a veterinary doctor.
 
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Cosmetic companies add sap or other derivatives from ''A. vera'' to products such as makeup, moisturisers, [[soap]]s, [[sunscreen]]s, [[shampoo]]s and [[lotion]]s, though the effectiveness of ''Aloe vera'' in these products remain unknown. ''A. vera'' gel is also alleged to be useful for dry skin conditions, especially eczema around the eyes and sensitive facial skin.
 
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An article published in the ''British Journal of General Practice'' suggests that ''A. vera'' is effective at treating [[athlete's foot]] {{Fact|date=February 2007}}. The [[topical]] application of ''A. vera'' is not an effective preventative for radiation-induced injuries.
 
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Whether or not it promotes wound healing is unknown, and even though there are some promising results, clinical effectiveness of oral or topical ''A. vera'' remains unclear at present.
 
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[[Aloe vera juice]] may help some people with ulcerative colitis, an inflammatory bowel disease.
 
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Greenleaf Aloe Vera Gel, manufactured by Brihans in India, cites their product as useful in the treatment of acne and undereye circles.
 
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[[Image:Aloe vera leaf.jpg|thumb|Leaf close up]]
 
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==Parts that can be used==
 
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The lower leaf of the plant is used for medicinal purpose. If the lower leaf is sliced open, the gel obtained can be applied on the affected area. Leaves and seeds are the two edible parts of Aloe Vera.
 
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===Use in foods===
 
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In Japan Aloe Vera is commonly used as an ingredient in commercially available [[yogurt]].
 
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There are also several Korean companies which produce Aloe Vera beverages.
 
  
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In Pakistan, the plant has been used for centuries as a [[carminative]] and digestive aid.  The dried gel is mixed with seeds of various herbs and consumed after a meal. 
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===Propagation===
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{{edit-prop}}<!--- Type propagation info below this line, then delete this entire line -->
  
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Tribes in the [[Hazara (Pakistan)|Hazara]] region of the [[North West Frontier Province]] have been using Aloe Vera for centuries to improve physical endurance, probably due to the high nutrient content of the gel.
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===Pests and diseases===
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{{edit-pests}}<!--- Type pest/disease info below this line, then delete this entire line -->
  
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People in Rajastahn state of India prepare vegetable out of Aloe Vera along with fenugreek seeds.
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==Species==
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<!--  This section should be renamed Cultivars if it appears on a page for a species (rather than genus), or perhaps Varieties if there is a mix of cultivars, species, hybrids, etc    -->
  
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People in Tamil nadu, another state of India prepare a curry using Aloe Vera which is taken along with Indian bread or Rice.
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==Gallery==
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{{photo-sources}}<!-- remove this line if there are already 3 or more photos in the gallery  -->
  
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In Mexico some people make [[smoothies]] out of Aloe Vera.
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<gallery>
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Image:Upload.png| photo 1
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Image:Upload.png| photo 2
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Image:Aloe vera.jpg|Flowers
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Image:Aloe vera leaf.jpg|Leaf close up
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</gallery>
  
 
==References==
 
==References==
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{{commons|Aloe vera}}
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*[[Standard Cyclopedia of Horticulture]], by L. H. Bailey, MacMillan Co., 1963
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*[http://www.jaaha.org/cgi/content/abstract/31/5/439 The effect of Acemannan Immunostimulant in combination with surgery and radiation therapy on spontaneous canine and feline fibrosarcomas]
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<!--- xxxxx  *Flora: The Gardener's Bible, by Sean Hogan. Global Book Publishing, 2003. ISBN 0881925381  -->
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*[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=92000401&dopt=Abstract Decreased mortality of Norman murine sarcoma in mice treated with the immunomodulator, Acemannan.]
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<!--- xxxxx  *American Horticultural Society: A-Z Encyclopedia of Garden Plants, by Christopher Brickell, Judith D. Zuk. 1996. ISBN 0789419432  -->
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*[http://molpharm.aspetjournals.org/cgi/content/abstract/53/3/415 Induction of Apoptosis in a Macrophage Cell Line RAW 264.7 By Acemannan, a -(1,4)-Acetylated Mannan ]
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<!--- xxxxx  *Sunset National Garden Book. Sunset Books, Inc., 1997. ISBN 0376038608  -->
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*Serrano M, Valverde JM, Guillen F, Castillo S, Martinez-Romero D, Valero D. (2006). Use of Aloe vera gel coating preserves the functional properties of table grapes. ''J Agric Food Chem'' 54 (11): 3882-3886. see [http://www.medicalnewstoday.com/medicalnews.php?newsid=30968 also].
 
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*[http://www.pfaf.org/database/plants.php?Aloe+vera Plants for a Future: ''Aloe vera'']
 
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*[http://rbg-web2.rbge.org.uk/cgi-bin/nph-readbtree.pl/feout?FAMILY_XREF=&GENUS_XREF=Aloe&SPECIES_XREF=vera&TAXON_NAME_XREF=&RANK= Flora Europaea: ''Aloe vera''] (lists only as an introduced plant, contrary to statements of European origin in some other sources)
 
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*[http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200027555 Flora of China: ''Aloe vera'']
 
  
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==External links==
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*{{wplink}}
  
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<!-- Please do not add links to websites that sell Aloe Vera products -->
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{{stub}}
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[[Category:Categorize]]
  
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[[Category:Aloe]]
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<!--  in order to add all the proper categories, go to http://www.plants.am/wiki/Plant_Categories and copy/paste the contents of the page here, and then follow the easy instructions!    -->
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[[Category:Medicinal plants]]
 
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[[Category:Flora of Africa]]
 

Revision as of 18:19, 24 September 2009


Aloe vera 2web.jpg


Plant Characteristics
Lifespan: ⌛ perennial
Origin: ✈ ?
Cultivation
Exposure: ☼ ?"?" is not in the list (sun, part-sun, shade, unknown) of allowed values for the "Exposure" property.
Water: ◍ ?"?" is not in the list (wet, moist, moderate, dry, less when dormant) of allowed values for the "Water" property.
Scientific Names

Asphodelaceae >

Aloe >

vera >



Read about Aloe vera in the Standard Cyclopedia of Horticulture 

Aloe vera, Linn. (A. perfoliala vera, Linn. A. elongata, Murr. A. barbadensis, Mill. A. vulgaris. Lam. A. flava, Pers.). Cespitose, the sts. at length 1-1.5 ft. high: lvs. suberect or spreading, gradually narrowed from the base, pale, 2-3 x 12-20 in., irregularly white-blotched and narrow when young and 2-ranked on offsets, the repand margin with weak pale prickles: infl. 2-3 ft. high, often simple; fls. 1 in. long, yellow, the segms. about equaling the oblong tube. Medit. region and intro. generally through the tropics. —The source of "Barbados aloes." Varies in a large Arabian form with broader lvs., taller infl., and fls. shading into orange, var. officinalis, Baker (A. officinalis, Forsk., A. rubescens, DC.); a smaller Asiatic form with red-tinged fls., var. chinensis (A. indica, Royle. A. chinensis, Baker); and a hardier garden form of this, var. Lanzae, Berger (A. Lanzae, Tod.). 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

Gallery

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  • photo 1

  • photo 2

  • Flowers

  • Leaf close up

References

External links


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