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Scientific Name | Geissorhiza elsiae Goldblatt |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
National Status |
Status and Criteria | Rare |
Assessment Date | 2021/08/23 |
Assessor(s) | D. Raimondo, P. Goldblatt & T. Patel |
Justification | This range-restricted species has an extent of occurrence (EOO) of 160 km², and an area of occupancy (AOO) of 36 km². It is rare and occurs as scattered clumps of fewer than 50 individuals. It faces no threats and the population is stable. It is listed globally as Least Concern, and nationally, as Rare. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Eastern Cape, Western Cape |
Range | A narrow endemic to the Kammanassie Mountains in the Little Karoo in Western Cape. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | South Kammanassie Sandstone Fynbos, Central Inland Shale Band Vegetation |
Description | It occurs on cool, damp, seasonally waterlogged south-facing slopes. |
Threats |
| It has no severe threat, however a combination of fire and drought may potentially cause this species to decline. |
Population |
Plants occur in small clumps of, on average, between 10 and 50 flowering individuals, however there are likely to be many undiscovered subpopulations. Recent monitoring on the Kammanassie mountains indicates that there are about 10 subpopulations scattered along this mountain range.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Geissorhiza elsiae Goldblatt | VU D1 | 2012.1 | | Geissorhiza elsiae Goldblatt | VU D1 | Raimondo et al. (2009) | | Geissorhiza elsiae Goldblatt | Rare | Hilton-Taylor (1996) | |
Bibliography |
Goldblatt, P. 1985. Systematics of the southern African genus Geissorhiza (Iridaceae-Ixioideae). Annals of the Missouri Botanical Garden 72(2):277-447.
Goldblatt, P. and manning, J.C. 1995. New species of the southern African genus Geissorhiza (Iridaceae: Ixioideae). Novon 5(2):156-161.
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. 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.
Vlok, J. and Schutte-Vlok, A.L. 2010. Plants of the Klein Karoo. Umdaus Press, Hatfield.
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Citation |
| Raimondo, D., Goldblatt, P. & Patel, T. 2021. Geissorhiza elsiae Goldblatt. National Assessment: Red List of South African Plants version . Accessed on 2024/09/08 |
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