Taxonomy
Scientific Name
Hessea undosa Snijman
Higher Classification
Monocotyledons
Family
AMARYLLIDACEAE
National Status
Status and Criteria
Vulnerable D2
Assessment Date
2004/07/20
Assessor(s)
D.A. Snijman & J.E. Victor
Justification
Known from three locations. Its seasonally waterlogged habitat is potentially threatened by drought and ploughing of surrounding areas for Rooibos plantations.
Distribution
Endemism
South African endemic
Provincial distribution
Western Cape
Range
Gifberg and Matsikamma Mountains.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Bokkeveld Sandstone Fynbos
Description
Open, dry montane fynbos, in wet areas around sheets of Table Mountain Sandstone, 600 m.
Threats
Natural disasters, Habitat loss
Population
Population trend
Stable
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Hessea undosa SnijmanVU D2Raimondo et al. (2009)
Hessea undosa SnijmanVU D2Victor (2002)
Hessea undosa SnijmanRare Hilton-Taylor (1996)
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.


Helme, N. 2004. The vegetation of Matsikamma Mountain, with some comments on Endemicity. Plantlife 30:5-16.


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


Hilton-Taylor, C. Unpublished. Succulent Karoo Red Data List (version 1997 - in preparation). SANBI.


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. 1989. New species of Hessea (Amaryllidaceae) from the western Cape. South African Journal of Botany 55(3):349-357.


Snijman, D.A. 1992. Notes on the Strumariinae (Amaryllidaceae : Amaryllideae): six new taxa in Strumaria and Hessea from the central and northwestern Cape, South Africa, and southern Namibia. Bothalia 22(1):1-11.


Snijman, D.A. 1994. Systematics of Hessea, Strumaria and Carpolyza (Amaryllideae: Amaryllidaceae). Contributions from the Bolus Herbarium 16:1-162.


Snijman, D.A. 1999. A new species, notes on subgeneric taxa, and new synonyms in Hessea (Amaryllidaceae: Amaryllideae) from South Africa. Novon 9(1):107-110.


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. & Victor, J.E. 2004. Hessea undosa Snijman. National Assessment: Red List of South African Plants version . Accessed on 2025/05/10

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Distribution map

© C. Paterson-Jones


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