Cape Waterstar

Taxonomy
Scientific Name
Pauridia alticola Snijman & Kocyan
Higher Classification
Monocotyledons
Family
HYPOXIDACEAE
Synonyms
Empodium occidentale (Nel) B.L.Burtt, Forbesia occidentalis Nel, Saniella occidentalis (Nel) B.L.Burtt
Common Names
Cape Waterstar (e)
National Status
Status and Criteria
Near Threatened B1ab(i,ii,iii,iv,v)
Assessment Date
2016/08/29
Assessor(s)
D.A. Snijman, N.A. Helme & L. von Staden
Justification
EOO 14 824 km², known from 10 to 15 locations and declining due to ongoing habitat loss to agricultural expansion.
Distribution
Endemism
South African endemic
Provincial distribution
Northern Cape, Western Cape
Range
Hantamsberg near Calvinia southwards across the Roggeveld Escarpment to the Swartruggens Mountains and Koue Bokkeveld near Ceres.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Fynbos, Succulent Karoo
Description
Seasonally inundated depressions on shale and dolerite, and shale bands in the Cederberg.
Threats
This species is declining due to ongoing habitat loss to agricultural expansion around Ceres and in the Koue Bokkeveld, where many subpopulations known through historical records are now locally extinct. Two subpopulations were recently found during Environmental Impact Assessments for expansion of orchards and dam construction. On the Roggeveld Escarpment, there is some sporadic expansion of crop fields, but this threat is less severe.
Population
Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Pauridia alticola Snijman & KocyanRare 2014.1
Saniella occidentalis (Nel) B.L.BurttRare Raimondo et al. (2009)
Saniella occidentalis (Nel) B.L.BurttLower Risk - Least Concern Victor (2002)
Empodium occidentale (Nel) B.L.BurttInsufficiently Known Hilton-Taylor (1996)
Bibliography

Burtt, B.L. 2000. Saniella and its relation to other South African genera of Hypoxidaceae. Edinburgh Journal of Botany 57(1):63-70.


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.


Snijman, D.A. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. South African National Biodiversity Institute, Pretoria.


Snijman, D.A. 2014. A taxonomic revision of the genus Pauridia (Hypoxidaceae) in southern Africa. Phytotaxa 182(1):1-114.


Snijman, D.A. and Kocyan, A. 2013. The genus Pauridia (Hypoxidaceae) amplified to include Hypoxis sect. Ianthe, Saniella and Spiloxene, with revised nomenclature and typification. Phytotaxa 116(1):19-33.


Victor, J.E. 2002. South Africa. In: J.S. Golding (ed), Southern African plant Red Data Lists. Southern African Botanical Diversity Network Report 14 (pp. 93-120), SABONET, Pretoria.


Citation
Snijman, D.A., Helme, N.A. & von Staden, L. 2016. Pauridia alticola Snijman & Kocyan. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2017/10/22

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Distribution map

© C. Paterson-Jones

© C. Paterson-Jones

© C. Paterson-Jones


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