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Scientific Name | Sparaxis parviflora (G.J.Lewis) Goldblatt |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
Synonyms | Synnotia parviflora G.J.Lewis |
Common Names | Tiny Satinflower (e) |
National Status |
Status and Criteria | Vulnerable B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) |
Assessment Date | 2021/09/16 |
Assessor(s) | N.A. Helme, D. Raimondo, P. Goldblatt, J.C. Manning, L. von Staden & T. Patel |
Justification | This species has an extent of occurrence (EOO) of 1637 km², and an area of occupancy (AOO) of 80 km². Ten extant locations remain after extensive habitat loss, predominantly to crop cultivation. It continues to decline due to ongoing habitat loss, fragmentation and degradation, as well as competition from alien invasive plants. It is therefore listed as Vulnerable under criteria B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | It is endemic to South Africa, and is found between Mamre and Saldanha Bay on the Atlantic Coast of Western Cape. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Saldanha Granite Strandveld, Swartland Granite Renosterveld, Hopefield Sand Fynbos |
Description | It occurs in sandy ground or in coarse, granite derived soils, often in granite outcrops. |
Threats |
| This species has lost 36% of its habitat (calculated using landcover data in GIS). Around Langebaan, it is known from a few granite outcrops where it is threatened by ongoing habitat loss to urban expansion. Around Darling, four known subpopulations survive on isolated fragments after extensive habitat loss to crop cultivation. These small, isolated subpopulations are threatened mainly by ongoing habitat degradation and competition from alien invasive plants. Around Hopefield, this species is also threatened by competition from dense, unmanaged invasive wattles (N.A. Helme pers. obs.). |
Population |
The population has an overall decreasing trend. Subpopulations are found around Hopefield, near Darling, and around Saldanha Bay and Langebaan. In 2006, 500 individuals were recorded at Rondeberg Private Nature Reserve Conservation camp, and in 2014, 50 individuals were recorded on Nooitgedacht farm, north of Vredenburg. No other records give an indication of population size.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Sparaxis parviflora (G.J.Lewis) Goldblatt | VU B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) | 2015.1 | | Sparaxis parviflora (G.J.Lewis) Goldblatt | NT B1ab(ii,iii,iv,v) | Raimondo et al. (2009) | |
Bibliography |
Goldblatt, P. 1992. Phylogenetic analysis of the South African genus Sparaxis (Including Synnotia) (Iridaceae-Ixioideae), with two new species and a review of the Genus. Annals of the Missouri Botanical Garden 79(1):143-159.
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.
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 |
| Helme, N.A., Raimondo, D., Goldblatt, P., Manning, J.C., von Staden, L. & Patel, T. 2021. Sparaxis parviflora (G.J.Lewis) Goldblatt. National Assessment: Red List of South African Plants version . Accessed on 2025/05/09 |
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