Scientific Name
Secamone alpini Schult.
Higher Classification
Periploca secamone L., Secamone thunbergii E.Mey., Secamone thunbergii E.Mey. var. retusa E.Mey.
Common Names
Bobbejaantou (a), Bostou (a)
National Status
Status and Criteria
Least Concern
Assessment Date
L. von Staden
Secamone alpini is a widespread species with no severe threats, and is therefore not in danger of extinction.
Not endemic to South Africa
Provincial distribution
Eastern Cape, KwaZulu-Natal, Limpopo, Mpumalanga, North West, Western Cape
This species is widespread across eastern South Africa, from the Limpopo River Valley southwards through North West, Limpopo, Gauteng, Mpumalanga and KwaZulu-Natal to the Eastern and Southern Cape coastal areas as far as the Cape Peninsula and the Bokkeveld Escarpment. Also occurs in Kenya, Mozambique, Tanzania, Uganda, Zambia and Zimbabwe.
Habitat and Ecology
Major system
Major habitats
Scarp Forest, Southern Afrotemperate Forest, Northern Mistbelt Forest, South Langeberg Sandstone Fynbos, Moist Coast Hinterland Grassland, Woodbush Granite Grassland, Northern Coastal Forest, Southern Coastal Forest, South Eastern Coastal Thornveld, Southern Mistbelt Forest, Cederberg Sandstone Fynbos, Midlands Mistbelt Grassland, Tsitsikamma Sandstone Fynbos, Kogelberg Sandstone Fynbos, Transkei Coastal Belt, Pondoland-Ugu Sandstone Coastal Sourveld, KwaZulu-Natal Coastal Belt Grassland, Cape Seashore Vegetation, Kasouga Dune Thicket, Goukamma Dune Thicket, Fish Valley Thicket, Buffels Mesic Thicket, Kouga Grassy Sandstone Fynbos, Legogote Sour Bushveld, Soutpansberg Mountain Bushveld, Granite Lowveld, Gold Reef Mountain Bushveld, Northern Afrotemperate Forest, Tzaneen Sour Bushveld, Bhisho Thornveld, Bethelsdorp Bontveld, Western Coastal Shale Band Vegetation, Central Coastal Shale Band Vegetation, Swellendam Silcrete Fynbos, Knysna Sand Fynbos, Southern Cape Dune Fynbos, Leipoldtville Sand Fynbos, Boland Granite Fynbos, Peninsula Granite Fynbos, Garden Route Granite Fynbos, Suurberg Shale Fynbos, Thukela Valley Bushveld, De Hoop Limestone Fynbos, KwaZulu-Natal Coastal Belt Thornveld, Canca Limestone Fynbos, Suurberg Quartzite Fynbos, Bokkeveld Sandstone Fynbos, Baviaans Valley Thicket, Overberg Sandstone Fynbos, North Langeberg Sandstone Fynbos, Zululand Lowveld, South Outeniqua Sandstone Fynbos, Graafwater Sandstone Fynbos, Northern Zululand Sourveld, Albany Valley Thicket, North Kammanassie Sandstone Fynbos, Garden Route Shale Fynbos, Hamburg Dune Thicket, Escarpment Mesic Thicket, Fish Arid Thicket, Fish Mesic Thicket, Eastern Valley Bushveld, KwaZulu-Natal Sandstone Sourveld, Gouritz Valley Thicket, Grahamstown Grassland Thicket, Hartenbos Strandveld, KwaZulu-Natal Hinterland Thornveld, Mons Ruber Fynbos Thicket, Nanaga Savanna Thicket, Northern Inland Shale Band Vegetation, Vanstadens Forest Thicket, Breede Alluvium Fynbos, St Francis Dune Thicket, Fynbos Riparian Vegetation, Cape Lowland Alluvial Vegetation, Albany Alluvial Vegetation, Thukela Thornveld, Subtropical Seashore Vegetation, Subtropical Dune Thicket, Maputaland Coastal Belt, Maputaland Wooded Grassland, Makatini Clay Thicket, Buffels Valley Thicket, Elands Forest Thicket, Umtiza Forest Thicket, Tsomo Grassland, Paulpietersburg Moist Grassland, KaNgwane Montane Grassland, Barberton Montane Grassland, Lydenburg Thornveld, Northern Escarpment Quartzite Sourveld, Poung Dolomite Mountain Bushveld, Wolkberg Dolomite Grassland, Soutpansberg Summit Sourveld, Waterberg-Magaliesberg Summit Sourveld, Long Tom Pass Montane Grassland, Northern Zululand Mistbelt Grassland, Drakensberg Foothill Moist Grassland, South Kammanassie Sandstone Fynbos, Mthatha Moist Grassland, uKhahlamba Basalt Grassland, Queenstown Thornveld, Tarkastad Montane Shrubland, Mamabolo Mountain Bushveld, Low Escarpment Moist Grassland, Northern KwaZulu-Natal Moist Grassland, Mooi River Highland Grassland, Polokwane Plateau Bushveld, Gauteng Shale Mountain Bushveld, Andesite Mountain Bushveld, Loskop Mountain Bushveld, Waterberg Mountain Bushveld, Makhado Sweet Bushveld, East Griqualand Grassland, Ironwood Dry Forest, Algoa Sandstone Fynbos, Olifants Sandstone Fynbos, Nardouw Sandstone Fynbos, Western Maputaland Clay Bushveld, South Hex Sandstone Fynbos, Peninsula Sandstone Fynbos, Swamp Forest, Swaziland Sour Bushveld, Albany Mesic Thicket, Kaalrug Mountain Bushveld, Moot Plains Bushveld, Sekhukhune Mountain Bushveld, Wakkerstroom Montane Grassland, Sand Forest, Rand Highveld Grassland, Swartland Granite Renosterveld, Nieuwoudtville Shale Renosterveld, Breede Shale Renosterveld, Swartland Shale Renosterveld, Lambert's Bay Strandveld, Saldanha Flats Strandveld, Langebaan Dune Strandveld, Cape Flats Dune Strandveld, Blombos Strandveld, Groot Brak Dune Strandveld, Amathole Montane Grassland, Northern Drakensberg Highland Grassland, Kouga Sandstone Fynbos, Ohrigstad Mountain Bushveld
It occurs in thickets and upland forest in tropical regions, but in coastal bush or dune forest in the Cape.
Population trend
Assessment History
Taxon assessed
Status and Criteria
Citation/Red List version
Secamone alpini Schult.Least Concern Raimondo et al. (2009)

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.

Goyder, D.J. 1992. Secamone (Asclepiadaceae subfam. Secamonoideae) in Africa. Kew Bulletin 47(3):437-474.

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.

von Staden, L. 2020. Secamone alpini Schult. National Assessment: Red List of South African Plants version 2020.1. Accessed on 2022/05/19

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Distribution map

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