Schizoglossum bidens subsp. hirtum

Taxonomy
Scientific Name
Schizoglossum bidens E.Mey. subsp. hirtum Kupicha
Higher Classification
Dicotyledons
Family
APOCYNACEAE
National Status
Status and Criteria
Endangered B1ab(iii)
Assessment Date
2014/10/03
Assessor(s)
H. Mtshali
Justification
EOO is 1510 km², and known from five widely scattered locations. It is declining due to ongoing habitat loss and degradation, as well as competition from alien invasive plants.
Distribution
Endemism
South African endemic
Provincial distribution
KwaZulu-Natal
Range
KwaZulu-Natal Midlands and East Griqualand.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Midlands Mistbelt Grassland, Southern KwaZulu-Natal Moist Grassland, Drakensberg Foothill Moist Grassland
Description
Moist grassland, on mountain slopes.
Threats
Very little of this taxon's mistbelt grassland habitat remains intact after extensive losses to agriculture and timber plantations. It is threatened by ongoing habitat loss to development in the Midlands, and further south small grassland fragments continue to be degraded due to overgrazing and inappropriate fire management. Alien invasive plants are also spreading over much of the range.
Population

The taxon is only known from a few records and was last collected 23 years ago. Recent surveys by volunteers of the Custodians of Rare and Endangered Wildflowers (CREW) Programme have recorded a previously unknown subpopulation in Boston, which consists of about 50 plants. This is currently the only known subpopulation, and continued surveys are needed to determine if other subpopulations still exist. It is highly likely that it is overlooked as plants are cryptic, particularly in unburnt grassland, and intact habitat still exists at four locations known through historical records.


Population trend
Decreasing
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Schizoglossum bidens E.Mey. subsp. hirtum KupichaData Deficient Raimondo et al. (2009)
Schizoglossum bidens E.Mey. subsp. hirtum KupichaData Deficient Scott-Shaw (1999)
Schizoglossum bidens E.Mey. subsp. hirtum KupichaInsufficiently Known Hilton-Taylor (1996)
Bibliography

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


Kupicha, F.K. 1984. Studies on African Asclepiadaceae. Kew Bulletin 38(4):599-672.


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.


Scott-Shaw, C.R. 1999. Rare and threatened plants of KwaZulu-Natal and neighbouring regions. KwaZulu-Natal Nature Conservation Service, Pietermaritzburg.


Citation
Mtshali, H. 2014. Schizoglossum bidens E.Mey. subsp. hirtum Kupicha. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2017/03/25

Comment on this assessment Comment on this assessment
Distribution map

© H. Mtshali

© H. Mtshali

© M. Mkhize

© M. Mkhize

© C. Grant


Search for images of Schizoglossum bidens subsp. hirtum on iSpot