Taxonomy
Scientific Name
Lachenalia nardousbergensis G.D.Duncan
Higher Classification
Monocotyledons
Family
HYACINTHACEAE
National Status
Status and Criteria
Near Threatened B1ab(iii)
Assessment Date
2020/03/18
Assessor(s)
G.D. Duncan & L. von Staden
Justification
Lachenalia nardousbergensis has a restricted distribution range, with an extent of occurrence (EOO) of 4294 km². It is declining across most of its range due to ongoing habitat loss to rooibos tea cultivation, but sill persists at more than 10 locations. It therefore nearly meets the criteria thresholds for Vulnerable under criterion B.
Distribution
Endemism
South African endemic
Provincial distribution
Northern Cape, Western Cape
Range
This species has a narrow distribution in the Northern and Western Cape Provinces, where it occurs from the Bokkeveld Escarpment around Nieuwoudtville southwards to the Nardous Mountains and northern Cederberg. One isolated subpopulation has been recorded from the northern tip of the Piketberg.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Agter-Sederberg Shrubland, Piketberg Sandstone Fynbos, Cederberg Sandstone Fynbos, Bokkeveld Sandstone Fynbos
Description
It occurs in deep sandy soils on flats and plateaus in mountain fynbos.
Threats
It is threatened by ongoing habitat loss to rooibos tea cultivation around Nieuwoudtville, on the Nardous Plateau, Gifberg and in places outside protected areas in the Cederberg.
Population

This species is locally common, and recent field observations indicate that it is still common in the Cederberg, where its habitat is protected. Elsewhere in its range it is declining due to ongoing habitat loss.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Lachenalia nardousbergensis G.D.DuncanLeast Concern Raimondo et al. (2009)
Bibliography

Duncan, G.D. 2012. The genus Lachenalia. Kew Publishing, Royal Botanic Gardens, Kew.


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.


Citation
Duncan, G.D. & von Staden, L. 2020. Lachenalia nardousbergensis G.D.Duncan. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2020/10/28

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Distribution map


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