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Scientific Name | Sparaxis caryophyllacea Goldblatt |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
Common Names | Speckle Satinflower (e) |
National Status |
Status and Criteria | Vulnerable D2 |
Assessment Date | 2020/12/11 |
Assessor(s) | P. Goldblatt, D. Raimondo, L. von Staden & T. Patel |
Justification | This is a rare, localized species, known from one location. It has an extent of occurrence (EOO) and an area of occupancy of 12 km². It is potentially threatened by habitat loss and degradation due to road maintenance and overgrazing, and is therefore listed as Vulnerable under criterion D. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | It is a local endemic to South Africa, known only from the western slopes at the northern end of the Nardouw Mountains. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Doringrivier Quartzite Karoo, Bokkeveld Sandstone Fynbos |
Description | It occurs in stony clay, below the contact line with the lowermost band of Table Mountain Sandstone that caps the Nardouw range. |
Threats |
| This species has lost 7% of its habitat (calculated using landcover data in GIS). Fynbos on the summit of the Nardouw Mountain above the population continues to be lost to crop cultivation, however, this species' rocky habitat is unlikely to be ploughed. It may be impacted by road construction and clearing of road verges (Goldblatt and Manning 2013). The area was noted to be subjected to grazing in the past, but it does not appear to have negatively impacted the population. Habitat degradation and loss to erosion remains a potential threat. |
Population |
It was first collected in 1976. It is a rare, localized species known from only one subpopulation of fewer than 200 mature individuals. It is however quite likely overlooked and more widespread as its habitat remains poorly explored (Goldblatt and Manning 2013). The population is currently stable and under no immediate threat (Goldblatt and Manning 2013).
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Sparaxis caryophyllacea Goldblatt | VU D2 | 2015.1 | | Sparaxis caryophyllacea Goldblatt | CR B1ab(iii)+2ab(iii); C2a(ii) | Raimondo et al. (2009) | | Sparaxis caryophyllacea Goldblatt | Rare | Hilton-Taylor (1996) | |
Bibliography |
Goldblatt, P. 1999. Sparaxis. In: O.A. Leistner (ed). Flora of Southern Africa 7 Iridaceae Part 2: Ixioideae, Fascicle 1: Ixieae:151-169. National Botanical Institute, Pretoria.
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.
Goldblatt, P. and Manning, J.C. 2013. Systematics and biology of the Cape genus Sparaxis (Iridaceae). Strelitzia 32. South African National Biodiversity Institute, Pretoria.
Goldblatt, P. and Manning, J.C. 2020. Iridaceae of southern Africa. Strelitzia 42. South African National Biodiversity Institute, 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.
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Citation |
| Goldblatt, P., Raimondo, D., von Staden, L. & Patel, T. 2020. Sparaxis caryophyllacea Goldblatt. National Assessment: Red List of South African Plants version . Accessed on 2025/04/17 |
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