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Scientific Name | Haworthia herbacea (Mill.) Stearn |
Higher Classification | Monocotyledons |
Family | ASPHODELACEAE |
National Status |
Status and Criteria | Data Deficient - Taxonomically Problematic |
Assessment Date | 2014/03/19 |
Assessor(s) | L. von Staden, R.R. Klopper & J.C. Manning |
Justification | Haworthia herbacea is difficult to distinguish from two other narrow endemics of the Worcester-Robertson area, H. reticulata and H. maculata (Bayer 1982). Until taxonomically resolved, an assessment of its risk of extinction cannot be done. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Western Cape |
Range | Worcester to Robertson. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Fynbos, Succulent Karoo |
Description | Karroid shrubland and renosterveld on shale. |
Threats |
| Threatened by habitat loss to expanding vineyards, expanding informal settlements and urban expansion around Worcester. |
Population |
Population trend | Decreasing |
Notes |
| Haworthia has been plagued with an overprolification of names, recognising variation over similarity, and causing much confusion (Bayer and Manning 2012). The genus needs to be revised using population-level molecular techniques in order for species concepts to be resolved (J.C. Manning pers. comm. 2014). |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Haworthia herbacea (Mill.) Stearn | Data Deficient (Taxonomically Problematic) | 2014.1 | | Haworthia herbacea (Mill.) Stearn var. herbacea | VU B1ab(ii,iii) | Raimondo et al. (2009) | | Haworthia herbacea (Mill.) Stearn var. flaccida M.B.Bayer | CR B1ab(ii,iii,iv,v)+2ab(ii,iii,iv,v) | Raimondo et al. (2009) | | Haworthia herbacea (Mill.) Stearn var. paynei (Poelln.) M.B.Bayer | VU D2 | Raimondo et al. (2009) | | Haworthia herbacea (Mill.) Stearn var. lupula M.B.Bayer | Data Deficient (Taxonomically Problematic) | Raimondo et al. (2009) | |
Bibliography |
Bayer, M.B. 1982. The new Haworthia handbook. National Botanical Gardens of South Africa.
Bayer, M.B. 1999. Haworthia Revisited: A revision of the genus. Umdaus Press, Hatfield.
Bayer, M.B. and Manning, J.C. 2012 (Updated online 2013). The Haworthia nomenclator: A list of accepted species with some guidelines for infraspecific names. Haworthia Update 7(4):30-40.
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.
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Citation |
| von Staden, L., Klopper, R.R. & Manning, J.C. 2014. Haworthia herbacea (Mill.) Stearn. National Assessment: Red List of South African Plants version . Accessed on 2025/05/17 |
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