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Scientific Name | Selago cryptadenia Hilliard |
Higher Classification | Dicotyledons |
Family | SCROPHULARIACEAE |
National Status |
Status and Criteria | Vulnerable B1ab(iii)+2ab(iii) |
Assessment Date | 2018/10/01 |
Assessor(s) | L. von Staden |
Justification | Selago cryptadenia is a range-restricted species with an extent of occurrence (EOO) of 2168 km². It is known from fewer than 10 locations and is declining due to ongoing habitat loss. It is therefore listed as Vulnerable under criterion B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | This species is endemic to South Africa, and is found from Pakhuis Pass to northern Swartland. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Swartland Shale Renosterveld, Citrusdal Shale Renosterveld, Piketberg Sandstone Fynbos, Olifants Sandstone Fynbos, Graafwater Sandstone Fynbos, Northern Inland Shale Band Vegetation |
Description | It occurs on lower slopes, often ecotonal areas between shale and sandstone. |
Threats |
| Selago cryptadenia has lost nearly 30% of its habitat to crop cultivation in the Swartland and Olifants River Valley, and loss continues. |
Population |
It is known from only a few collections, and recent observations are scarce. It is a localized habitat specialist. Subpopulations in the Swartland occur on isolated remnants of natural vegetation.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Selago cryptadenia Hilliard | VU B1ab(iii)+2ab(iii) | 2020.1 | | Selago cryptadenia Hilliard | Least Concern | 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.
Hilliard, O.M. 1999. The tribe Selagineae (Scrophulariaceae). Royal Botanic Garden Edinburgh/Royal Botanic Gardens, Edinburgh/Kew.
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.
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Citation |
| von Staden, L. 2018. Selago cryptadenia Hilliard. National Assessment: Red List of South African Plants version . Accessed on 2024/10/08 |
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