Scientific Name
Trianoptiles solitaria (C.B.Clarke) Levyns
Higher Classification
Carpha solitaria (C.B.Clarke) H.Pfeiff., Ecklonea solitaria C.B.Clarke
National Status
Status and Criteria
Endangered B1ab(i,ii,iii,iv,v)
Assessment Date
C. von Witt, D. Raimondo & D. van der Colff
EOO of 400 km² and a AOO less than 230 km² and only known from four locations. It was threatened by habitat loss in the past to urban expansion and is currently threatened by habitat degradation due to invasive alien plants and eutrophication.
South African endemic
Provincial distribution
Western Cape
Cape Peninsula to the Perdeberg south of Malmesbury.
Habitat and Ecology
Major system
Major habitats
Swartland Granite Renosterveld, Swartland Alluvium Renosterveld, Boland Granite Fynbos, Cape Flats Sand Fynbos, Swartland Alluvium Fynbos
Damp depressions in acid sands.
Threatened by eutrophication from surrounding urban areas and urban development was a severe past threat. Invasive alien grasses is a continues threat. 89% of its habitat has been transformed.
Population trend
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Trianoptiles solitaria (C.B.Clarke) LevynsEN B1ab(i,ii,iii,iv,v)2017.1
Trianoptiles solitaria (C.B.Clarke) LevynsCR B1ab(iii)+2ab(iii)Raimondo et al. (2009)
Trianoptiles solitaria (C.B.Clarke) LevynsVU D2Victor (2002)
Trianoptiles solitaria (C.B.Clarke) LevynsIndeterminate Hilton-Taylor (1996)

Clarke, C.B. 1908. New genera and species of Cyperaceae. Kew Bulletin Add. Ser. 8:43.

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.

Helme, N.A. and Trinder-Smith, T.H. 2006. The endemic flora of the Cape Peninsula, South Africa. South African Journal of Botany 72(2):205-210.

Hilton-Taylor, C. 1996. Red data list of southern African plants. Strelitzia 4. South African National Botanical Institute, Pretoria.

Levyns, M.R. 1943. A revision of Trianoptiles Fenzl. Journal of South African Botany 9:21-26.

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.

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.

von Witt, C., Raimondo, D. & van der Colff, D. 2015. Trianoptiles solitaria (C.B.Clarke) Levyns. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2020/07/09

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Distribution map

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