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Scientific Name | Drimia sigmoidea J.C.Manning & J.M.J.Deacon |
Higher Classification | Monocotyledons |
Family | HYACINTHACEAE |
National Status |
Status and Criteria | Rare |
Assessment Date | 2015/04/08 |
Assessor(s) | L. von Staden |
Justification | Drimia sigmoidea is a range-restricted species, with an extent of occurrence (EOO) of 380 km². It has no severe threats, and is therefore not suspected to be in danger of extinction. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | This species is endemic to the Breede River Valley between Worcester and Bonnievale in the Western Cape. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Robertson Karoo, Breede Quartzite Fynbos, Cape Lowland Alluvial Vegetation |
Description | It occurs on stony shale and sandstone slopes and cliffs. |
Threats |
| This species has no severe threats. |
Population |
Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Drimia sigmoidea J.C.Manning & J.M.J.Deacon | Rare | 2015.1 | |
Bibliography |
Manning, J., Deacon, J. and Goldblatt, P. 2014. A review of the Schizobasis group of Drimia Jacq. (Hyacinthaceae: Urgineoideae), and the new species D. sigmoidea from Western Cape, South Africa. South African Journal of Botany 94:263-269.
Manning, J.C. and Goldblatt, P. 2018. Systematics of Drimia Jacq. (Hyacinthaceae: Urgineoideae) in southern Africa. Strelitzia 40. South African National Biodiversity Institute, Pretoria.
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Citation |
| von Staden, L. 2015. Drimia sigmoidea J.C.Manning & J.M.J.Deacon. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14 |
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