Biology:Aloidendron pillansii

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Short description: Species of tree

Aloidendron pillansii
Aloe pillansii00.jpg
CITES Appendix I (CITES)[2]
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Asphodelaceae
Subfamily: Asphodeloideae
Tribe: Aloeae
Genus: Aloidendron
Species:
A. pillansii
Binomial name
Aloidendron pillansii
(L.Guthrie) Klopper & Gideon F.Sm.[3]
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Aloidendron pillansii range
  Extant (resident)
Synonyms[3]
  • Aloe pillansii L.Guthrie
  • (L.Guthrie) Zonn. Aloe dichotoma subsp. pillansii

Aloidendron pillansii, formerly Aloe pillansii, the giant quiver tree or bastard quiver tree, is a large, branching species of succulent plant indigenous to southern Africa. It is regarded as critically endangered.

Description

Aloidendron pillansii grows up to 15 m in height. It branches dichotomously, and superficially resembles Aloidendron dichotomum. It can be distinguished by its paler, wider, recurved leaves, and its taller, more sparsely branched growth form. The branches are made of a fiber that is soft and penetrable, which allows them to store water. Because of its habitat, the Aloidendron pillansii can shed itself of its branches and leaves if they deem detrimental to its survival.

Its round, bright yellow flowers are pendant, and hang down below the rosette (unlike those of the other tree aloes). They appear in Spring.

Distribution

It is found around the border between Namibia and South Africa , where its natural habitat is upper mountain slopes, in the arid winter-rainfall Richtersveld shrubland. It is severely threatened by habitat loss, illegal collecting, and livestock grazing. The species will not survive without intervention.

Cultivation

It rarely appears in cultivation, as it is an extremely slow growing species, and difficult to cultivate.

It requires full sun, extremely well-drained rocky mineral soil, and very dry conditions. In habitat, it grows on rocky slopes in a desert region which receives its sparse rainfall predominantly in the winter.

References

  • "Bastard quiver tree". ARKive. http://www.arkive.org/bastard-quiver-tree/aloe-pillansii/. 
  • "Aloidendron pillansii". Namibian Biodiversity Database. https://www.biodiversity.org.na/taxondisplay.php?nr=2159. 
  • "Aloe pillansii". Desert plants. http://desert-plants.blogspot.com/2009/07/aloe-pillansii.html. 
  • "Aloe pillansii". Be-Amazed Gardening. http://www.be-amazed.co.za/gardening/aloes/pillansii.html. 
  • "Aloe pillansii". The Cactus and succulent plant mall. http://www.cactus-mall.com/puyl/1017.html. 
  • "Aloe pillansii". Succulent Plant Site South Africa. http://www.succulents.co.za/aloes/tree-aloes/aloe-pillansii.php. 
  • Vernon, Trail, Jesse. Quiver Trees, Phantom Orchids & Rock Splitters : The Remarkable Survival Strategies of Plants, ECW Press, 2015. ProQuest Ebook Central, ProQuest 2134869252
  • Duncan, J., Hoffman, T., Rohde, R. et al. Long-term population changes in the Giant Quiver Tree, Aloe pillansii in the Richtersveld, South Africa. Plant Ecol 185, 73–84 (2006).doi:10.1007/s11258-005-9085-0

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