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Summer Impala Lily

Taxonomy
Scientific Name
Adenium swazicum Stapf
Higher Classification
Dicotyledons
Family
APOCYNACEAE
Common Names
Rathbonia (e), Summer Impala Lily (e)
National Status
Status and Criteria
Critically Endangered A4acd
Assessment Date
2009/08/14
Assessor(s)
P.J.H. Hurter, M. Lötter, S. Krynauw, J.E. Burrows & J.E. Victor
Justification
Based on aerial photographs 50% of its habitat has been transformed by sugar cane agriculture over the past two generations (60 years). It is currently declining due to harvesting for horticultural and medicinal purposes. Extrapolating to include a future generation (i.e. another 30 years), we estimate an overall decline of 80% over three generations.
Distribution
Endemism
Not endemic to South Africa
Provincial distribution
Mpumalanga
Range
Kruger National Park, Swaziland and Lebombo Mountains.
Habitat and Ecology
Major system
Terrestrial
Major habitats
Granite Lowveld, Gabbro Grassy Bushveld, Tshokwane-Hlane Basalt Lowveld, Malelane Mountain Bushveld, Delagoa Lowveld, Zululand Lowveld
Description
Deep clay soils predominantly derived from basalt and ryholite, in short mixed thornveld, 200-400 m.
Threats
Collected for horticultural and medicinal purposes, and threatened by extensive habitat loss to sugarcane cultivation.
Population

At least 50% of this species' habitat has been transformed for sugarcane cultivation, predominantly within the past 50-60 years. About 10-20% of the population is protected within the Kruger National Park, and assuming past rates of decline continues, it is likely to be the only remaining plants within the next 30 years.


Population trend
Decreasing
Citation
Hurter, P.J.H., Lötter, M., Krynauw, S., Burrows, J.E. & Victor, J.E. 2009. Adenium swazicum Stapf. National Assessment: Red List of South African Plants version 2017.1. Accessed on 2020/04/06

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Distribution map


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