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Scientific Name | Hebenstretia dregei Rolfe |
Higher Classification | Dicotyledons |
Family | SCROPHULARIACEAE |
Synonyms | Polycenia fruticosa E.Mey., not Hebenstretia fruticosa L.f. |
National Status |
Status and Criteria | Vulnerable D2 |
Assessment Date | 2018/05/14 |
Assessor(s) | L. von Staden |
Justification | Hebenstretia dregei is a rare, localized habitat specialist known from three locations. It is potentially threatened by competition from alien invasive plants. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | This species occurs between Genadendal and Swellendam in the Western Cape. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | South Langeberg Sandstone Fynbos, South Sonderend Sandstone Fynbos |
Description | It occurs on lower south-facing stony mountain slopes, where it is possibly restricted to kloofs. |
Threats |
| The species is potentially threatened by competition from alien invasive plants - the lower southern slopes of the Riviersonderend Mountains around Genadendal is densely infested with unmanaged, spreading invasive pines. Density of pines on the mountain has significantly increased over the past 15 years. |
Population |
This species is known from very few collections, and was last recorded in 1958. It is probably a rare, localized habitat specialist - two collections with relatively precise locality descriptions are from kloofs. The current population trend is not known. Field surveys are needed to relocate it in the wild.
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Population trend | Unknown |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Hebenstretia dregei Rolfe | Data Deficient | Raimondo et al. (2009) | |
Bibliography |
Goldblatt, P. and Manning, J.C. 2000. Cape Plants: A conspectus of the Cape Flora of South Africa. Strelitzia 9. National Botanical Institute, Cape Town.
Manning, J.C. and Goldblatt, P. 2012. Plants of the Greater Cape Floristic Region 1: The Core Cape Flora. Strelitzia 29. South African National Biodiversity 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.
Roessler, H. 1979. Revision der Gattungen Hebenstretia L. und Dischisma Choisy (Scrophulariaceae - Selagineae). Mitteilungen der Botanischen Staatssammlung München 15:1-160.
Rolfe, R.A. 1901. Selagineae. In: W.T. Thiselton-Dyer (ed). Flora Capensis V Section I (Acanthaceae-Proteaceae):95-180. Lovell Reeve & Co., Ltd., London.
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Citation |
| von Staden, L. 2018. Hebenstretia dregei Rolfe. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2023/12/08 |
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