Grootghaap

Taxonomy
Scientific Name
Hoodia grandis (N.E.Br.) Plowes
Higher Classification
Dicotyledons
Family
APOCYNACEAE
Synonyms
Hoodia colei Plowes, Hoodia pilifera (L.f.) Plowes subsp. pillansii (N.E.Br.) Bruyns, Trichocaulon grande N.E.Br., Trichocaulon pillansii N.E.Br., Trichocaulon pillansii N.E.Br. var. major N.E.Br.
Common Names
Grootghaap (a)
National Status
Status and Criteria
Least Concern
Assessment Date
2019/11/04
Assessor(s)
L. von Staden
Justification
Hoodia grandis has a restricted distribution range, with an extent of occurrence (EOO) of 8109 km². It has no severe threats, and is therefore not in danger of extinction, and is therefore listed as Least Concern.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
This species is endemic to South Africa, and occurs in the southern Great Karoo and Little Karoo between Matjiesfontein, Merweville, Leeu-Gamka and Calitzdorp.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Western Little Karoo, Koedoesberge-Moordenaars Karoo, Gamka Karoo, North Swartberg Sandstone Fynbos, North Rooiberg Sandstone Fynbos, Southern Karoo Riviere, Oudshoorn Karroid Thicket
Description
It occurs sheltered among karroid shrubs on gentle to steep stony slopes.
Threats
Hoodia grandis is possibly threatened by harvesting as a result of confusion with Hoodia gordonii, however, Hoodia harvesting is decreasing and harvesting is unlikely to cause widespread decline.
Population

It occurs as widely scattered subpopulations. The population is not suspected to be declining, but requires monitoring to determine the impact of harvesting.


Population trend
Stable
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Hoodia pilifera (L.f.) Plowes subsp. pillansii (N.E.Br.) BruynsData Deficient (Taxonomically Problematic) Raimondo et al. (2009)
Hoodia pilifera (L.f.) Plowes subsp. pillansii (N.E.Br.) BruynsVulnerable Hilton-Taylor (1996)
Trichocaulon pillansii N.E.Br.Endangered Hall et al. (1980)
Bibliography

Bruyns, P.V. 2005. Stapeliads of southern Africa and Madagascar. (Vol. 1, pp. 1-330). Umdaus Press, Pretoria.


Hall, A.V., De Winter, M., De Winter, B. and Van Oosterhout, S.A.M. 1980. Threatened plants of southern Africa. South African National Scienctific Programmes Report 45. CSIR, Pretoria.


Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.


Raimondo, D., von Staden, L., Foden, W., Victor, J.E., Helme, N.A., Turner, R.C., Kamundi, D.A. and Manyama, P.A. 2009. Red List of South African Plants. Strelitzia 25. South African National Biodiversity Institute, Pretoria.


Citation
von Staden, L. 2019. Hoodia grandis (N.E.Br.) Plowes. National Assessment: Red List of South African Plants version . Accessed on 2025/04/13

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Distribution map

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