Aloe squarrosa

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Ordo: Asparagales

Familia: Asphodelaceae
Subfamilia: Asphodeloideae
Genus: Aloe
Species: Aloe squarrosa
Name

Aloe squarrosa Baker ex Balf.f., Proc. Roy. Soc. Edinburgh 12: 97 (1883).
Synonyms

Heterotypic
Aloe concinna Baker, Bull. Misc. Inform. Kew 1895: 153. (1895), nom. illeg.
Aloe zanzibarica Milne-Redh., Kew Bull. 2: 33. (1947)

Distribution
Native distribution areas:

Continental: Africa
Regional: Northeast Tropical Africa
Socotra.

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References

Baker, J.G. 1883. Proc. Roy. Soc. Edinburgh 12: 97.
Govaerts, R. et al. 2019. Aloe squarrosa in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2019 Feb. 20. Reference page.
International Plant Names Index. 2019. Aloe squarrosa. Published online. Accessed: Feb. 20 2019.
The Plant List 2013. Aloe squarrosa in The Plant List Version 1.1. Published online. Accessed: 2019 Feb. 20.
Tropicos.org 2019. Aloe squarrosa. Missouri Botanical Garden. Published online. Accessed: 20 Feb. 2019.

loe squarrosa is a species of flowering plant in the Asphodelaceae family.[2] It is from the island of Socotra, Yemen.
Distribution and habitat
Aloe squarrosa in cultivation in Kew Gardens, London

Aloe squarrosa is endemic to the island of Socotra, Yemen. It is one of three Aloe species that are indigenous to this island, the other two being Aloe perryi and Aloe jawiyon.

The natural habitat of Aloe squarrosa is limestone cliff-faces and rocky areas. It is threatened by habitat destruction and is destroyed by goat herding.[1]
Identification
Aloe squarrosa in cultivation, under the '"zanzibarica"' label.

Aloe squarrosa has smooth, green, spotted leaves that curve backwards. These recurved leaves are kept only around the head or top of each stem, with dead leaves falling off the lower parts of the stem. The inflorescence is short and simple, and the flowers are light orange with green tips. It is relatively rare in cultivation.

It is frequently confused with Aloe juvenna from Kenya. However the more common Aloe juvenna has shorter, straight, non-recurved triangular leaves and grows long stems, with the leaves retained all along the stems.
References

Miller, A. (2004). "Aloe squarrosa". IUCN Red List of Threatened Species. 2004: e.T44898A10951673. doi:10.2305/IUCN.UK.2004.RLTS.T44898A10951673.en. Retrieved 16 November 2021.
"Aloe squarrosa Baker ex Balf.f." Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved July 26, 2020.
"Aloe squarrosa Baker ex Balf.f." World Flora Online. The World Flora Online Consortium. n.d. Retrieved July 26, 2020.