Bearded Spiderhead

Taxonomy
Scientific Name
Serruria phylicoides (P.J.Bergius) R.Br.
Higher Classification
Dicotyledons
Family
PROTEACEAE
Synonyms
Serruria barbigera Salisb. ex Knight
Common Names
Bearded Spiderhead (e)
National Status
Status and Criteria
Least Concern
Assessment Date
2019/04/15
Assessor(s)
A.G. Rebelo, H. Mtshali & L. von Staden
Justification
Serruria phylicoides has a restricted distribution range, with an extent of occurrence (EOO) of 6141 km². Within its range, it is frequently encountered as dense stands, and although there are ongoing threats to some subpopulations, it is not in danger of extinction. It is therefore listed as Least Concern.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
This species has a restricted distribution in the mountains of the Western Cape Province, South Africa, where it occurs from the Du Toit's Kloof to Hottentots-Holland, Riviersonderend and Kleinrivier mountains.
Habitat and Ecology
Major system
Terrestrial
Major habitats
South Sonderend Sandstone Fynbos, North Sonderend Sandstone Fynbos, Overberg Sandstone Fynbos, Kogelberg Sandstone Fynbos, Hawequas Sandstone Fynbos
Description
It grows on sandstone slopes and flats, 70-1600 m. Mature individuals are killed by fires, and only seeds survive. 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
About 9% of this species' habitat is already irreversibly modified, predominantly due to vineyards and crop cultivation. Recent field observations indicate that alien invasive plants are spreading into this species' habitat along the southern slopes of the Riviersonderend, Du Toit's Kloof, Hottentots Holland and some parts of Kleinrivier mountains.
Population

This species is most frequently encountered as dense isolated patches. The population is currently declining at a slow rate due to ongoing habitat degradation from invasive alien plant infestations.


Population trend
Stable
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Serruria phylicoides (P.J.Bergius) R.Br.Least 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.


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. 2019. Serruria phylicoides (P.J.Bergius) R.Br. National Assessment: Red List of South African Plants version . Accessed on 2025/04/14

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Distribution map


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