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Scientific Name | Helictotrichon roggeveldense Mashau, L.Fish & A.E. van Wyk |
Higher Classification | Monocotyledons |
Family | POACEAE |
National Status |
Status and Criteria | Endangered B1ab(iii,iv,v)+2ab(iii,iv,v) |
Assessment Date | 2011/03/17 |
Assessor(s) | L. von Staden |
Justification | This grass is another narrow endemic to the Roggeveld Centre of Endemism (EOO <100 km²). It may have been more common in the past, but has declined extensively due to overgrazing, and is now known from only two locations. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape |
Range | Sutherland. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Roggeveld Shale Renosterveld |
Description | Roggeveld Shale Renosterveld. |
Threats |
| Severely threatened by extreme overgrazing, which has already led to the near-extinction of another endemic from the area, Secale strictum subsp. africanum. The last known collection is from a road reserve, where plants have escaped grazing. |
Population |
This apparently very rare species is another narrow endemic to the Roggeveld Centre of Endemism, and is likely to have declined extensively in the past, although it is not possible to estimate the population reduction, as the species was only recently recognized. It is very likely that only a few relict subpopulations remain in areas where they are protected from grazing such as road reserves.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Helictotrichon roggeveldense Mashau, L.Fish & A.E. van Wyk | EN B1ab(iii,iv,v)+2ab(iii,iv,v) | 2011.1 | |
Bibliography |
Mashau, A.C., Fish, L. and Van Wyk, A.E. 2010. Poaceae: Two new species of Helictotrichon (Pooideae: Aveneae) from South Africa. Bothalia 40(2):179-183.
Snijman, D.A. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. South African National Biodiversity Institute, Pretoria.
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Citation |
| von Staden, L. 2011. Helictotrichon roggeveldense Mashau, L.Fish & A.E. van Wyk. National Assessment: Red List of South African Plants version . Accessed on 2025/04/13 |
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