Taxonomy
Scientific Name
Geissorhiza parva Baker
Higher Classification
Monocotyledons
Family
IRIDACEAE
National Status
Status and Criteria
Least Concern
Assessment Date
2023/06/14
Assessor(s)
T. Patel
Justification
This species has an extent of occurrence (EOO) of 27 362 km² and an area of occupancy (AOO) of 214 km². It is known from between 22 and 25 subpopulations. While the population trend is declining due to habitat loss and degradation in lowland subpopulations, the majority of subpopulations occur in montane areas. Therefore, it is not in danger of extinction and is listed as Least Concern.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
It is endemic to the Western Cape province of South Africa, extending from the Cederberg in the north to the Langeberg near Swellendam in the east.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Fynbos
Description
It occurs mainly in montane environments at middle to upper elevations but occasionally at low elevations near the coast in the Caledon District, either in open ground or more often on wet, rocky pavements in sand or damp moss pads.
Threats
There has been some loss of habitat to crop cultivation especially in lowland subpopulations. Additionally, invasive alien plants are causing habitat degradation in these lowland subpopulations.
Population

It is known from between 22 and 25 subpopulations and the population trend is declining.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Geissorhiza parva BakerLeast Concern Raimondo et al. (2009)
Bibliography

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.


Citation
Patel, T. 2023. Geissorhiza parva Baker. National Assessment: Red List of South African Plants version . Accessed on 2024/09/08

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Distribution map


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