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Aloe vaombe

Decorse et Poisson

Malagasy tree aloe

iNaturalist· cc-by-nc

(c) Jenny Donald, some rights reserved (CC BY-NC), uploaded by Jenny Donald

iNaturalist· cc-by-nc

(c) mamy_andriamahay, some rights reserved (CC BY-NC), uploaded by mamy_andriamahay

iNaturalist· cc-by-nc

(c) CORDENOS Thierry, some rights reserved (CC BY-NC), uploaded by CORDENOS Thierry

Aloe vaombe is a species of aloe endemic to southern Madagascar. It is a succulent, evergreen plant with an unbranched stem up to 5 meters in height, and 20 cm in diameter.

Description

A succulent plant with an unbranched stem growing 5 m tall and 20 cm wide, belonging to the Xanthorrhoeaceae family.

This description is brief — help expand it

Edible Uses

The leaves and heart are eaten.

Medicinal Uses

It is used as medicine.

Known Hazards

The sap of Aloe species contains anthraquinones. These compounds have several beneficial medicinal actions, particularly as a laxative, and many species of Aloe are thus employed in traditional medicine. Whilst safe in small doses and for short periods of time, anthraquinones do have potential problems if used in excess. These include congestion and irritation of the pelvic organs. Long term use of anthraquinone laxatives may also play a role in development of colorectal cancer as they have genotoxic potential, and tumorigenic potential.

Distribution

Adelaide Botanical Gardens. Brisbane Botanical Gardens.

Where It Grows

Africa, Australia, East Africa, Madagascar, USA,

Cultivation

Plants can tolerate temperatures down to around zero, but can be badly damaged if it gets colder. Prefers a position in full sun, but can tolerate light shade. Aloe species follow the Crassulacean acid metabolism (CAM). CAM plants can fix carbon dioxide at night and photosynthesize with closed stomata during the day, thus minimizing water loss. This, plus their succulent leaves and stems, and the presence of a thick cuticle, makes them well adapted to dry conditions.

Propagation

Seed - we have no specific information on this species - in general Aloes are sown in a sandy, well-drained potting soil in a warm, shady position in standard seed trays. Germination takes about three weeks. Cover the seed with a thin layer of sand (1 - 2mm), keep moist. The seedlings can be planted out in individual bags or containers as soon as they are large enough to handle. Division of suckers.

Notes

There are about 350-400 Aloe species. Also put in the family Aloaceae. It is used as medicine. Also put in the family Asphodelaceae.

References (3)

  • Jardin, C., 1970, List of Foods Used In Africa, FAO Nutrition Information Document Series No 2.p 53
  • Martin, F.W. & Ruberte, R.M., 1979, Edible Leaves of the Tropics. Antillian College Press, Mayaguez, Puerto Rico. p 202
  • Recherch. fl. merid. Madagascar 96. 1912

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