Rooihanekam

Taxonomy
Scientific Name
Babiana hirsuta (Lam.) Goldblatt & J.C.Manning
Higher Classification
Monocotyledons
Family
IRIDACEAE
Synonyms
Anaclanthe namaquensis N.E.Br., Anaclanthe plicata (L.f.) N.E.Br., Antholyza hirsuta Lam., Antholyza namaquensis (N.E.Br.) Goldblatt, Antholyza plicata L.f., Babiana thunbergii Ker Gawl., Gladiolus mollis Vahl, Gladiolus sulcatus Lam., superfluous name for A. hirsuta Lam.
Common Names
Rooihanekam (a), Sandlelie (a)
National Status
Status and Criteria
Least Concern
Assessment Date
2021/08/28
Assessor(s)
T. Patel & N.A. Helme
Justification
This species has a long, narrow, coastal distribution from Saldanha Bay to the Orange River Mouth. It has an extent of occurrence (EOO) of 23 673 km², and an area of occupancy (AOO) of 288 km². It is known from at least 45 subpopulations, and is threatened by diamond mining activities in the northern part of its range and by grazing, coastal development and heavy mineral mining in the southern part. Observations on the iNaturalist platform over the past decade however show that this species has many more subpopulations than previously known and it remains too common and widespread to list as threatened. It is therefore listed as Least Concern.
Distribution
Endemism
South African endemic
Provincial distribution
Northern Cape, Western Cape
Range
This species is endemic to South Africa, and is common along the Atlantic Coast of the Northern and Western Cape provinces, from the mouth of the Orange River southward to Britannia Bay near Saldanha.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Desert, Succulent Karoo
Description
It occurs on sandy coastal flats and dunes.
Threats
This species has lost 23% of its habitat (calculated using landcover data in GIS). It is threatened by diamond mining activities in the northern parts of its range and by grazing and development in the southern parts. A further threat to the southern subpopulations is mining for heavy minerals. Some subpopulations may also have been impacted by the implementation of centre-point irrigation schemes which have allowed the planting of crops in previously non-arable areas.
Population

This species occurs commonly in coast sands, it has been recorded from 45 subpopulations and there are 86 observations of this species on iNaturalist between 2012 and 2021. This is an indication that although the population is declining due to loss of habitat it is still common and widespread across its range.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Babiana thunbergii Ker Gawl.NT B1ab(ii,iii,iv,v)Raimondo et al. (2009)
Babiana thunbergii Ker Gawl.Not Threatened Hilton-Taylor (1996)
Bibliography

Goldblatt, P. and Manning, J.C. 2007. A revision of the southern African genus Babiana, Iridaceae, Crocoideae. Strelitzia 18:1-97. South African National Biodiversity Institute, Pretoria.


Goldblatt, P. and Manning, J.C. 2020. Iridaceae of southern Africa. Strelitzia 42. South African National Biodiversity Institute, Pretoria.


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


Manning, J., Goldblatt, P. and Snijman, D. 2002. The color encyclopedia of Cape bulbs. Timber Press, Portland/Cambridge.


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
Patel, T. & Helme, N.A. 2021. Babiana hirsuta (Lam.) Goldblatt & J.C.Manning. National Assessment: Red List of South African Plants version . Accessed on 2024/12/07

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Distribution map

© J.C. Manning

© M. Treurnicht

© I. Ebrahim


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