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Scientific Name | Geissorhiza demissa Goldblatt & J.C.Manning |
Higher Classification | Monocotyledons |
Family | IRIDACEAE |
National Status |
Status and Criteria | Least Concern |
Assessment Date | 2021/08/20 |
Assessor(s) | L. von Staden & T. Patel |
Justification | This species has an extent of occurrence (EOO) of 584 km², and an area of occupancy (AOO) of 20 km². It is known from three highly disjunct subpopulations and the population is not declining. It is therefore listed as Least Concern. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape, Western Cape |
Range | It is recorded from the western parts of South Africa from the Kamiesberg in central Namaqualand, the plateau of the Gifberg near Vanrhynsdorp and from the Koue Bokkeveld mountains. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Fynbos |
Description | It is local and evidently uncommon in seasonally damp places in the shelter of granite boulders in the Kamiesberg or among sandstone rocks in the Western Cape mountains. |
Threats |
| This species has no known threats. |
Population |
Plants are localized and uncommon, but also cryptic and easily overlooked.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Geissorhiza demissa Goldblatt & J.C.Manning | Least Concern | 2011.1 | |
Bibliography |
Goldblatt, P. and Manning, J.C. 2012. New species and subspecies of Babiana, Hesperantha, and Ixia (Iridaceae: Crocoideae) from southern Africa; range extensions and morphological and nomenclatural notes on Babiana and Geissorhiza. Bothalia 42(2):137-145.
Goldblatt, P. and Manning, J.C. 2020. Iridaceae of southern Africa. Strelitzia 42. South African National Biodiversity Institute, Pretoria.
Goldblatt, P., Manning, J.C. and Nänni, I. 2009. New species of Geissorhiza (Iridaceae:Crocoideae) from the southern African winter rainfall zone, range extensions, taxonomic changes, and notes on pollen morphology. Bothalia 39(2):123-152.
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Citation |
| von Staden, L. & Patel, T. 2021. Geissorhiza demissa Goldblatt & J.C.Manning. National Assessment: Red List of South African Plants version . Accessed on 2024/09/08 |
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