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Scientific Name | Sparaxis grandiflora (D.Delaroche) Ker Gawl. subsp. acutiloba Goldblatt |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
Synonyms | Ixia monanthos D.Delaroche, Sparaxis lutea Eckl., Sparaxis monanthos (D.Delaroche) N.E.Br. |
Common Names | Botterlelie (a), Fluweelblom (a), Fluweeltjie (a), Pointed Grand Satinflower (e) |
National Status |
Status and Criteria | Vulnerable B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) |
Assessment Date | 2021/09/15 |
Assessor(s) | N.A. Helme, L. von Staden & T. Patel |
Justification | This subspecies has an extent of occurrence (EOO) of 1646 km² and an area of occupancy (AOO) of 76 km². It is known from ten remaining locations, which continue to decline due to ongoing habitat loss to urban and agricultural expansion. It is therefore listed as Vulnerable under criterion B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | It is endemic to the Western Cape province of South Africa, and occurs in the Olifants River Valley and extending from the central part of the valley near Citrusdal to some 10-12 km south of Clanwilliam. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Citrusdal Vygieveld, Citrusdal Shale Renosterveld, Northern Inland Shale Band Vegetation |
Description | It occurs at fairly low elevations along the valley bottom in exposures of Bokkeveld shales in the area of predominantly Cape Sandstone-derived soils. |
Threats |
| This subspecies' lowland habitat is already 50% transformed (calculated using landcover data in GIS), predominantly for citrus cultivation. In addition, urban expansion of Clanwilliam and Citrusdal is ongoing. |
Population |
It is a highly-localized species. With most of its habitat transformed, only a few subpopulations survive on remnants of natural veld. The population has a decreasing trend across its ten known locations.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Sparaxis grandiflora (D.Delaroche) Ker Gawl. subsp. acutiloba Goldblatt | Least Concern | 2012.1 | | Sparaxis grandiflora (D.Delaroche) Ker Gawl. subsp. acutiloba Goldblatt | Least Concern | Raimondo et al. (2009) | |
Bibliography |
Goldblatt, P. 1969. The genus Sparaxis. Journal of South African Botany 35:219-252.
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. 2013. Systematics and biology of the Cape genus Sparaxis (Iridaceae). Strelitzia 32. 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., von Staden, L. & Patel, T. 2021. Sparaxis grandiflora (D.Delaroche) Ker Gawl. subsp. acutiloba Goldblatt. National Assessment: Red List of South African Plants version . Accessed on 2025/04/17 |
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