Taxonomy
Scientific Name
Lachenalia unifolia Jacq.
Higher Classification
Monocotyledons
Family
HYACINTHACEAE
Synonyms
Lachenalia unifolia Jacq. var. unifolia
Common Names
Viooltjie (a)
National Status
Status and Criteria
Least Concern
Assessment Date
2019/11/27
Assessor(s)
G.D. Duncan & H. Mtshali
Justification
Lachenalia unifolia is the most common species of Lachenalia. Although it is threatened by habitat loss and degradation in some parts of the range, it is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category.
Distribution
Endemism
South African endemic
Provincial distribution
Northern Cape, Western Cape
Range
This species is widely distributed in Northern and Western Cape Provinces in South Africa, occurring from Namaqualand to Bredasdorp.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Agter-Sederberg Shrubland, Kamiesberg Mountains Shrubland, Overberg Dune Strandveld, Breede Shale Renosterveld, Swartland Granite Renosterveld, Olifants Sandstone Fynbos, Graafwater Sandstone Fynbos, Bokkeveld Sandstone Fynbos, Cape Flats Sand Fynbos, Atlantis Sand Fynbos, Hopefield Sand Fynbos
Description
It occurs in variable habitats, including flats and lower hill slopes, in sandy granitic soils.
Threats
The species' habitat has been extensively transformed, and it continues to decline due to ongoing habitat loss and degradation. Recent field observations noted increasing density of alien invasive species across its range.
Population

This taxon is widespread, and occurs as solitary individuals, in small groups or in dense colonies.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Lachenalia unifolia Jacq. var. unifolia Least Concern Raimondo et al. (2009)
Bibliography

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


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.


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. & Mtshali, H. 2019. Lachenalia unifolia Jacq. National Assessment: Red List of South African Plants version . Accessed on 2025/05/15

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Distribution map

© C. Merry

© C. Merry


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