Aloe barbertoniae

Taxonomy
Scientific Name
Aloe barbertoniae Pole-Evans
Higher Classification
Monocotyledons
Family
ASPHODELACEAE
National Status
Status and Criteria
Least Concern
Assessment Date
2019/02/07
Assessor(s)
H. Mtshali, D. McKenzie & M. Lötter
Justification
Aloe barbertoniae is a widespread and common species (EOO 11 760 km²). In spite of more than 40% historical habitat loss, it still persists at more than 25 locations, and does not at present meet any of the criteria thresholds indicating high risk of extinction.
Distribution
Endemism
South African endemic
Provincial distribution
Limpopo, Mpumalanga
Range
Mpumalanga and Limpopo Lowveld between Tzaneen and Barberton.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Legogote Sour Bushveld, Tzaneen Sour Bushveld, Granite Lowveld, Malelane Mountain Bushveld, Pretoriuskop Sour Bushveld
Description
Open grassland to bushy slopes, and river valleys.
Threats
Aloe barbertoniae has lost about 44% of its habitat, predominantly to fruit orchards in the Lowveld around Barberton, Tzaneen and Nelspruit, timber plantations around White River, as well as urban expansion around Nelspruit, White River and Bushbuckridge. Habitat loss however occurred over a period longer than three generations, and therefore a population reduction of more than 30% within three generations can not be inferred. Habitat loss and degradation is ongoing, particularly due to expanding rural settlements between White River and Tzaneen, but Aloe barbertoniae is still very common, and not considered to be in danger of extinction at present (M. Lötter, D. McKenzie pers. comm. 2019).
Population

Aloe barbertoniae is abundant, with subpopulations typically consisting of several hundred to thousands of individuals. At least one subpopulation has more than 10 000 mature individuals (D. McKenzie pers. comm. 2019). Recent field observations recorded it still present at 25 locations.


Population trend
Stable
Bibliography

Klopper, R.R., Smith, G.F., Grace, O.M. and Crouch, N.R. 2014. Reinstatement of Aloe barbertoniae Pole-Evans (Asphodelaceae: Alooideae) from northeastern South Africa. Bradleya 32:70-75.


Reynolds, G.W. 1969. The Aloes of South Africa. A.A. Balkema, Cape Town.


Citation
Mtshali, H., McKenzie, D. & Lötter, M. 2019. Aloe barbertoniae Pole-Evans. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2020/08/10

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Distribution map


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