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Aloe dichotoma (quiver tree)

The strange-looking quiver tree is an icon of southern Africa's most arid habitats.

Aloe dichotoma trees in situ

Aloe dichotoma photographed in 2007 in South Africa, Northern Cape, Kokerboomforest near Nieuwoudtville (Photo: Wolfgang Stuppy)

Species information

Common name: 

quiver tree, choje, kokerboom

Conservation status: 

Rated by the IUCN as Vulnerable. Listed on CITES Appendix II.

Habitat: 

Very dry, rocky environments.

Key Uses: 

Medicinal, ornamental.

Known hazards: 

None known.

Taxonomy

Subclass: 
Superorder: 
Lilianae
Order: 
Asparagales
Family: 
Xanthorrhoeaceae
Genus: Aloe

About this species

Aloe dichotoma is named for its distinctive forked branching pattern (from the Greek dikhotomia, meaning 'a cutting in two'). 

Genus: 
Aloe

Discover more

Geography and distribution

This species occurs in South Africa and Namibia.

Aloe dichotoma in South Africa (Photo: Wolfgang Stuppy)

Description

 

Aloe dichotoma is a tree aloe which grows up to 9 m tall. The trunk is stout with pale, flaking bark and a dense, rounded crown. The greyish leaves are succulent, about 30 cm long and narrow, with small teeth on the margins. The leaves are borne in rosettes. The flowers are bright yellow, tubular and about 3 cm long with orange stamens protruding from the mouth. The flowers are borne in racemes on a branched panicle about 30 cm tall.

Threats and conservation

Aloe dichotoma is threatened by the effects of climate change. Researchers in South Africa have shown that its distribution has shrunk during the last century and it has not yet been found in areas expected to become suitable with the changing climate.

Uses

The English common name for Aloe dichotoma – the quiver tree – refers to the San people’s use of the hollowed branches to make quivers to hold their hunting arrows. The roots are used in traditional medicine for asthma and tuberculosis. The plant has been tested for bioactivity against the malaria parasite (Plasmodium falciparum) and inflammatory responses.

Aloe dichotoma is also cultivated as an ornamental.

Aloe dichotoma in South Africa (Photo: Wolfgang Stuppy)

Cultivation

Aloe dichotoma is a relatively easy species to grow, but is slightly more difficult to propagate. A well-drained gritty compost should be used. At Kew this species is grown in mixed glasshouses with a minimum temperature of 10 °C, although this species could tolerate a temperature slightly lower than this. Aloe dichotoma can be grown outside in a pot for summer. It is best to soak the compost in the growing season and allow it to dry out fully between waterings. It should be watered more lightly in winter.

The easiest way to grow this species is from seed, although taking truncheon cuttings could be tried. At Kew, the base of the cuttings is sealed with sealing wax to keep moisture in the cutting for as long as it takes for the truncheon to push out roots in a slightly damp medium. Seramis (clay granules) is used as the medium.

This species at Kew

Aloe dichotoma is grown in the behind-the-scenes Tropical Nursery at Kew. A display of other Aloe species can be found in the Princess of Wales Conservatory.

South Africa Landscape - Kew at the British Museum

Between April and October 2010, Kew and the British Museum brought a small corner of South Africa to the heart of London. The South Africa Landscape celebrated a shared vision to strengthen cultural understanding and support biodiversity conservation across the world.

Aloe dichotoma (quiver tree) was one of the star plants featured in the Landscape.

References and credits

Foden, W. et al. (2007). A changing climate is eroding the geographical range of the Namib Desert tree Aloe through population declines and dispersal lags. Diversity and Distributions. 13: 645-653.

Lindsey, K.L., Jager, A.K., Viljoen, A.M. (2002). Cyclooxygenase inhibitory activity of Aloe species. South African Journal of Botany. 68: 47-50.

Reynolds, G.W. (1950). The Aloes of South Africa. Aloes of the World Book Fund, Johannesburg.

Van Den Eynden, V., Vernemmen, P., Van Damme, P. (1992). The Ethnobotany of the Topnaar. Universiteit Gent, Gent.

Van Zyl, R.L., Viljoen, A.M. (2002). In vitro activity of Aloe extracts against Plasmodium falciparum. South African Journal of Botany. 68: 106-110.

Kew Science Editor: Olwen Grace
Copyediting: Emma Tredwell

While every effort has been taken to ensure that the information contained in these pages is reliable and complete, the notes on hazards, edibility and suchlike included here are recorded information and do not constitute recommendations. No responsibility will be taken for readers’ own actions.

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