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Scientific Name | Geissorhiza stenosiphon Goldblatt |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
National Status |
Status and Criteria | Rare |
Assessment Date | 2023/06/19 |
Assessor(s) | N.A. Helme & T. Patel |
Justification | This range restricted habitat specialist has an extent of occurrence (EOO) and area of occupancy (AOO) of 12 km². It is known from two sites in an extremely limited range in the Koue Bokkeveld. It occurs on high altitude sandstone slopes where it is not threatened. It is therefore listed globally as Least Concern and nationally, as Rare. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | It is endemic to Western Cape province of South Africa, and is restricted to the upper slopes of Hexberg in upper Elandskloof in the Cold Bokkeveld Mountains. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Cederberg Sandstone Fynbos |
Description | It occurs on stony, south and east facing, sandstone slopes. |
Threats |
| This species has no threats. |
Population |
The species is known from three herbarium collections from two subpopulations. All collections were made between 1984 and 1985, there has been no recent recording of this species, however since it is a montane species and its habitat is intact the population is inferred to be stable.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Geissorhiza stenosiphon Goldblatt | Rare | Raimondo et al. (2009) | |
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. 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.
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. & Patel, T. 2023. Geissorhiza stenosiphon Goldblatt. National Assessment: Red List of South African Plants version . Accessed on 2024/09/14 |
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