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Scientific Name | Ophioglossum bergianum Schltdl. |
Higher Classification | Ferns |
Family | OPHIOGLOSSACEAE |
Synonyms | Rhizoglossum bergianum (Schltdl.) C.Presl |
Common Names | Bergius's Adder's-tongue (e) |
National Status |
Status and Criteria | Rare |
Assessment Date | 2011/10/24 |
Assessor(s) | D. Raimondo & J.P. Roux |
Justification | A widespread (EOO 23 000 km²) but rare habitat specialist. Subpopulations on the Cape Flats and Stellenbosch have been lost to urban development. Other subpopulations tend to be safe and there is no ongoing significant decline currently taking place. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape, Western Cape |
Range | Kamiesberg to Cape Peninsula. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Peninsula Sandstone Fynbos, Nardouw Sandstone Fynbos, Peninsula Granite Fynbos, Hangklip Sand Fynbos |
Description | Seeps on sandstone or granite slopes. |
Threats |
| Subpopulations on the Cape Flats and Stellenbosch have been lost to urban development in the past. Extant subpopulations are safe and there is no ongoing significant decline known to be taking place. |
Population |
A rare fern, but also possibly overlooked due to its diminutive size.
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Population trend | Stable |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Ophioglossum bergianum Schltdl. | Rare | Raimondo et al. (2009) | | Ophioglossum bergianum Schltdl. | Insufficiently Known | Hilton-Taylor (1996) | | Ophioglossum bergianum Schltdl. | Uncertain | Hall et al. (1980) | |
Bibliography |
Crouch, N.R., Klopper, R.R., Burrows, J.E. and Burrows, S.M. 2011. Ferns of southern Africa: A comprehensive guide. Struik Nature, Cape Town.
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.
Hall, A.V., De Winter, M., De Winter, B. and Van Oosterhout, S.A.M. 1980. Threatened plants of southern Africa. South African National Scienctific Programmes Report 45. CSIR, Pretoria.
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.
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Citation |
| Raimondo, D. & Roux, J.P. 2011. Ophioglossum bergianum Schltdl. National Assessment: Red List of South African Plants version . Accessed on 2025/05/14 |
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