Overview
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Endangered |
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Common Names
Common Names in English:
Aloe
Description
Family Aloaceae
Trees
, shrubs
, and succulents, perennial
, simple
to sparsely branched, rhizomatous
, some tuberous-thickened. Leaves simple, alternate, usually crowded at bases
of stems or ends of branches, sessile; blade
fleshy
, margins
often prickly, venation
parallel. Inflorescences terminal
, axillary
, or lateral
, spicate
, racemose, or paniculate
. Flowers 3-merous, short- to long-pedicellate, rarely sessile; perianth red, brown, yellow, orange, or whitish; tepals petaloid
, connivent or connate
basally to almost entirely into tube
, sometimes fleshy; stamens sometimes 3, usually 6, exserted or included
; anthers
dorsifixed
, dehiscence antrorse
; pollen grains
monosulcate; ovary 3-carpellate, placentation axile
, usually with septal nectaries; style terminal; stigmas punctate
, discoid
, or 3-lobed. Fruits capsular
, rarely baccate
, dehiscence loculicidal, apical. Seeds usually winged
or flattened.
Genera 5, species ca.
700 (1 genus, 2 species in the flora
) : all introduced
; Africa, Madagascar, Arabia, and Atlantic islands.
Aloaceae are closely related to and included by some authors
in Liliaceae.
The juice of some Aloe species is used to make a purgative
called bitter
aloe; active
ingredients include aloin and other anthraquinones
. Additionally, the thick, mucilaginous
gel
of some species is widely used to treat minor thermal burns
, itching, and sunburn.[1]
Genus Aloe
Plants
succulent, shrubby or arborescent
, scapose
. Stems erect
, clambering
or ascending
, branched or not. Leaves succulent, crowded, often rosulate or distichous; blade
margins
spiny-toothed or entire. Inflorescences axillary
or terminal
, paniculate
to more often racemose, dense, bracteate
. Flowers usually nodding
; perianth red to yellow; tepals connate
basally to almost entirely into tube
; stamens 3 or 6; style slender; pedicel not articulate
. Capsules papery
to woody. x
= 7.
Species 300 or more: introduced
; primarily s and tropical
Africa; also Madagascar, Arabian peninsula, and Atlantic islands (Madeira
, Canary, and Cape
Verde) ; naturalized
in the Mediterranean region, India, and China.[2]
Physical Description
Habit: Evergreen .
Flowers: Bloom Period: January, February. • Flower Color: dark red, scarlet
Size/Age/Growth
Size: 6-12" tall.
Habitat
Ecology: A stemless plant, growing singly or in small groups. Leaves about 30, in a compact
rosette, curved
inwards, having a reddish tint in hot weather, with the lower surface covered with a few sharp spines with white, tubercled bases
. Inflorescence single, occasionally two or three, a densely-flowered, cylindrical raceme
. Flowers tubular
, reddish in bud, greenish cream tinged with red on opening. Flowering time July and August (Germishuizen 1997).
Grows in rocky places, often on gravelly quartzite. Confined mainly to the Magaliesberg range
, usually on the northern slopes
and summit, in scanty grassland and in areas with very little soil.
List of Habitats
:3.5Shrubland - Subtropical/Tropical Dry
Biology
Growth
Culture: Space 15-18" apart.
Sunlight: Sun Exposure: Full Sun .
Moisture: Drought Tolerance: High
Temperature: Cold Hardiness: 9b, 10a, 10b, 11. (map)
Taxonomy
- Domain:
Eukaryota
(
)
- Whittaker & Margulis,1978
- eukaryotes
- Kingdom:
Plantae
(
)
- Haeckel, 1866
- Plants
- Subkingdom:
Viridaeplantae
(
)
- Cavalier-Smith, 1981
- Phylum:
Tracheophyta
(
)
- Sinnott, 1935 Ex Cavalier-Smith, 1998
- Vascular Plants
- Subphylum:
Euphyllophytina
(
)
- Infraphylum:
Radiatopses
(
)
- Kenrick & Crane, 1997
- Class:
Liliopsida
(
)
- Scopoli, 1760
- Subclass:
Liliidae
(
)
- Takhtajan, 1967
- Superorder:
Lilianae
(
)
- Takhtajan, 1967
- Order:
Asparagales
(
)
- Bromhead, 1838
- Suborder:
Asphodelineae
(
)
- Family:
Aloaceae
(
)
- Batsch, 1802
- Aloe Family
- Subfamily:
Iridoideae
(
)
- Subfamily:
Iridoideae
(
- Family:
Aloaceae
(
- Suborder:
Asphodelineae
(
- Order:
Asparagales
(
- Superorder:
Lilianae
(
- Subclass:
Liliidae
(
- Class:
Liliopsida
(
- Infraphylum:
Radiatopses
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Tracheophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
Notes
Publishing author : Schönland Publication : in Rec. Albany Mus. i. 120.An accepted name in the RHS Horticultural Database.
Similar Species
Members of the genus Aloe
ZipcodeZoo has pages for 1188 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:
A. aageodonta · A. abhaica · A. abyssicola · A. abyssinica · A. acinacifolia · A. aculeata (Red Hot Poker Aloe) · A. acuminata · A. acutissima (Aloe) · A. acutissima var. antanimorensis (Aloe) · A. adigratana · A. aethiopica · A. affinis (Aloe) · A. africana (Uitenhage Aloe) · A. africana f. variegata · A. agavefolia · A. agrophila · A. ahmarensis · A. albicans · A. albida · A. albida × haworthioides · A. albida x saundersii · A. albiflora (White-Flowered Aloe) · A. albiflora x littoralis · A. albispina · A. albocincta · A. albopicta · A. albovestita · A. aldabrense · A. aldabrensis · A. alexandrei · A. alfredii · A. alooides (Aloe) · A. altilinea · A. altimatsiatrae · A. amanensis · A. ambigens · A. ambrensis · A. americana · A. amicorum · A. ammophila · A. amoena · A. amudatensis (Aloe) · A. andohahelensis · A. andongensis (Aloe) · A. andongensis var. repens · A. andringitrensis (Aloe) · A. angelica (Aloe) · A. angiensis · A. angolensis · A. angulata · A. angusta · A. angustifolia · A. anivoranoensis · A. ankaranensis · A. ankoberensis · A. antandroi · A. antandroy · A. antonii · A. antoninii · A. antsingyensis · A. arabica · A. arachnoidea · A. arachnoides · A. arborea · A. arborescens (Candelabra Plant) · A. arborescens blue-leaved · A. arborescens 'Compton' · A. arborescens early-flowering · A. arborescens 'Eloff' · A. arborescens 'Frutescens' · A. arborescens 'Gold Rush' · A. arborescens 'Huntley' · A. arborescens 'Jack Marais' · A. arborescens 'John Winter' · A. arborescens late-flowering · A. arborescens 'Mathews' · A. arborescens Mill. var. frutescens (Salm-Dyck) Link · A. arborescens Mill. var. milleri A.Berger · A. arborescens 'Pearson' · A. arborescens 'Philip le Roux' · A. arborescens 'Rycroft' · A. arborescens 'Variegata' · A. arborescens × ferox · A. arborescens yellow-flowered · A. archeri · A. arenicola (Aloe) · A. argenticauda · A. argyrostachys · A. aristata (Guinea Fowl Aloe) · A. aristata 'Cathedral Peak' · A. aristata x gasteria · A. armatissima · A. aspera · A. asperifolia (Aloe) · A. asperiuscula · A. asperula · A. atherstonei · A. atrovirens · A. attenuata · aloe attenuata x shawii 'Blue Glow'
More Info
- Search for Pictures: images.google.com
- Search for Scholarly Articles: Google Scholar
- Search using Scientific Name and Vernacular Names: All the Web | AltaVista Canada | AltaVista | Excite | Google | HotBot | Lycos
- Search using Specialized Databases: GenBank | Medline | Scirus | CISTI/CAL | Agricola Periodicals | Agricola Books
Further Reading
- Gauteng Nature Conservation. Field observations and surveys. Results from Red Data plant project. Surveys of Krugersdorp populations were completed by staff of Witwatersrand Botanical Gardens (Andrew Hankey and Sharon Turner).
- Germishuizen, G. 1997. Wild Flowers of Northern South Africa. Fernwood Press, Vlaeberg.
- Hilton-Taylor, C. (compiler). 2000. 2000 IUCN Red List of Threatened Species. IUCN, Gland, Switzerland and Cambridge, UK.
- IUCN. 2003. 2003 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 18 November 2003.
- Pfab, M. and Patterson, C. 1998. Aloe peglerae. TRAFFIC East/Southern Africa Species Update: No 2, 1998.
- Pfab, M.F. and Victor, J.E. 2002. Threatened plants of Gauteng, South Africa. South African Journal of Botany 68: 370-375.
- Scholes, M.A. 1988. A population study of Aloe peglerae in habitat. South African Journal of Botany 54(2): 137-139.
- Van Wyk, B.-E. and Smith, G. 1996. Guide to the Aloes of South Africa. Briza Publications Arcadia.
- Moran, R. 1992. Aloe wild in California. Cact. Succ. J. (Los Angeles) 64: 55-56.
- Reynolds, G. W. 1982. The Aloes of South Africa, ed. 4. Rotterdam.
Notes
Contributors
- Bisby FA, Roskov YR, Orrell TM, Nicolson D, Paglinawan LE, Bailly N, Kirk PM, Bourgoin T, van Hertum J, eds (2008). Species 2000 & ITIS Catalogue of Life: 2008 Annual Checklist Taxonomic Classification. CD-ROM; Species 2000: Reading, U.K.
- Pfab, M.F. (Gauteng Nature Conservation) & Victor, J. (National Botanical Institute) 2003. In IUCN 2008. 2008 IUCN Red List of Threatened Species. IUCNRedList.org. Downloaded July 19, 2008.
- World Checklist of Selected Plant Families
Identifiers
- Biodiversity Heritage Library NamebankID: 5758576
- Catalogue of Life Accepted Name Code: Kew-297790
- Global Biodiversity Information Facility Taxonkey: 14976122
- Globally Unique Identifier: urn:lsid:ipni.org:names:529754-1
- International Plant Names Index (IPNI) ID: 529754-1
- IUCN ID: 39586
- Zipcode Zoo Species Identifier: 717247
Footnotes
- Walter C. Holmes & Heather L. White "Aloaceae". in Flora of North America Vol. 26 Page 12, 15, 18, 20, 410. Oxford University Press. Online at EFloras.org. [back]
- "Aloe". in Flora of North America Vol. 26 Page 410. Oxford University Press. Online at EFloras.org. [back]
