6885.050 Orbea
CARALLUMA R. Br.
ORBEOPSIS L.C. Leach
PACHYCYMBIUM L.C. Leach
Bruyns, P.V. (2002) Monograph of Orbea and Ballyanthus (Apocynaceae-Asclepiadoideae-Ceropegieae) Systematic Botany Monographs 63 1-196
Bruyns, P.V. (2005) Stapeliads of Southern Africa and Madagascar Volume I Umdaus Press, Hatfield, South Africa
Bruyns, P.V., Klak, C. & Hanáček, P. (2017) A revised, phylogenetically-based concept of Ceropegia (Apocynaceae) South African Journal of Botany 112 399-436
Fayaz, F. (2011) Encyclopedia of Tropical Plants Firefly Books, New Zealand
Leach, L.C. (1975) The Reinstatement of Orbea Haw. (Asclepiadaceae) Kirkia 10(1) 287-291
Description of the genus
Succulents, spineless; often rhizomatous, forming compact to diffuse clumps. Stems decumbent to prostrate, fleshy and firm, glabrous, purplish, mottled; tubercles spreading, often laterally flattened. Inflorescences glabrous, often 1-3 per stem; 1-40 flowered; bracts 1-several, lanceolate with several teeth. Sepals 5, lanceolate, acuminate; corolla usually rotate to campanulate, often thickened into a prominent annulus around a mount, mostly deeply lobed. Fruit consisting of erect follicles, divergent with two horns. Comment: More recent phylogenetic evidence has led to the forming of a very broad concept of the genus Ceropegia including the genus Brachystelma and all known genera within the Stapeliae (Bruyns, P.V., Klak, C. & Hanáček, P., 2017). However we follow Goyder et Al. in Flora Zambesiaca 7(2), 2020 where the inclusion of the Stapeliad genera has not been accepted. Worldwide: 56 species in Africa and South West Arabia. Botswana: 13 taxa. |
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Links to taxa: View: living plant images - herbarium specimen images - all images for this genus
| Species | FZ divisions | Content |
| carnosa (Stent) Bruyns subsp. keithii (R.A. Dyer) Bruyns | SE | Description, Image |
| caudata (N.E. Br.) Bruyns subsp. rhodesiaca (L.C. Leach) Bruyns | Description, Image | |
| huillensis (Hiern.) Bruyns subsp. huillensis | N | Description, Image |
| knobelii (E. Phillips) Bruyns [VU] | N,SW,SE | |
| lugardii (N.E. Br.) Bruyns | N,SW | Description, Image |
| lutea (N.E. Br.) Bruyns subsp. lutea | N,SE | Description, Image |
| maculata (N.E. Br.) L.C. Leach subsp. maculata | N,SE | Description, Image |
| rogersii (L. Bolus) Bruyns | Description, Image | |
| schweinfurthii (A. Berger) Bruyns | Description, Image | |
| tapscottii (Verd.) L.C.Leach [EN] | SE | Description, Image |
| valida (N.E. Br.) Bruyns subsp. occidentalis Bruyns [NrEnd] | N | |
| valida (N.E. Br.) Bruyns subsp. valida | N | Description, Image |
| variegata (L.) Haw. | Description, Image |
Other sources of information about Orbea:
Our websites:
Flora of Burundi: OrbeaFlora of Caprivi: Orbea
Flora of the DRC: Orbea
Flora of Malawi: Orbea
Flora of Mozambique: Orbea
Flora of Rwanda: Orbea
Flora of Zambia: Orbea
Flora of Zimbabwe: Orbea
External websites:
African Plants: A Photo Guide (Senckenberg): OrbeaBHL (Biodiversity Heritage Library): Orbea
EOL (Encyclopedia of Life): Orbea
GBIF (Global Biodiversity Information Facility): Orbea
Google: Web - Images - Scholar
iNaturalist: Orbea
IPNI (International Plant Names Index): Orbea
JSTOR Plant Science: Orbea
Mansfeld World Database of Agricultural and Horticultural Crops: Orbea
Plants of the World Online: Orbea
Tropicos: Orbea
Wikipedia: Orbea