Swan-neck Spoon

Taxonomy
Scientific Name
Spatalla thyrsiflora Salisb. ex Knight
Higher Classification
Dicotyledons
Family
PROTEACEAE
Synonyms
Sorocephalus spatalloides R.Br.
Common Names
Swan-neck Spoon (e)
National Status
Status and Criteria
Vulnerable D2
Assessment Date
2020/04/28
Assessor(s)
A.G. Rebelo, H. Mtshali & L. von Staden
Justification
Spatalla thyrsiflora is a range restricted species to the Du Toit's Kloof mountains in South Africa. It is known from five locations, and is potentially threatened by competition from alien invasive plants, which are already present in low densities at three of these locations. As the population is currently stable it is assessed as Vulnerable under criterion D.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
This species is endemic to the Western Cape Province, South Africa where it occurs in the Du Toit's Kloof Mountains. It historically also occurred on the Caledon Swartberg but has not been recorded there for over 100 years.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Elgin Shale Fynbos, Boland Granite Fynbos, Western Coastal Shale Band Vegetation
Description
It occurs in moist, rocky sandstone and granite slopes usually south-facing at high altitude. It is a long-lived species, and survives fires by resprouting from underground boles or rootstocks. Seeds are released after ripening, and dispersed by ants to their underground nests, where they are protected from predation and fire. It is pollinated by insects.
Threats
Spatalla thyrsiflora is known from five geographically isolated areas. All of the remaining subpopulations are formally protected. Alien invasive plants have been observed in low densities at three areas. If these are not controlled, they are likely to increase in density and eventually outcompete native species, particularly at Louwshoek.
Population

This species is known from a 23 km range, where it occurs as a dense, isolated population of fewer than 2500 plants each. It has been recorded from six subpopulations that are fragmented. One of the subpopulations from the Caledon Swartberg has gone extinct since it has not been re-located despite extensive searches over a 100 year period. All five remaining subpopulations are formally protected, and are potentially threatened by invasion of habitat by alien plants. The population is currently not declining.


Population trend
Stable
Conservation
It occurs within the Hawequas and Theewaters nature reserves.
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Spatalla thyrsiflora Salisb. ex KnightVU D2Raimondo 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.


Manning, J.C. and Goldblatt, P. 2012. Plants of the Greater Cape Floristic Region 1: The Core Cape Flora. Strelitzia 29. 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.


Rebelo, T. 2001. Sasol Proteas: A field guide to the proteas of southern Africa. (2nd ed.). Fernwood Press, Vlaeberg, Cape Town.


Citation
Rebelo, A.G., Mtshali, H. & von Staden, L. 2020. Spatalla thyrsiflora Salisb. ex Knight. National Assessment: Red List of South African Plants version . Accessed on 2025/01/21

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Distribution map


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