Orbea knobelii (E. Phillips) Bruyns

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Synonyms: Caralluma kalaharica Nel
Caralluma knobelii (E. Phillips) E. Phillips
Caralluma knobelii (E. Phillips) E. Phillips var. langii (A.C. White & B. Sloane) A.C. White & B. Sloane
Caralluma langii A.C. White & B. Sloane
Ceropegia knobelii (E. Phillips) Bruyns
Orbeopsis knobelii (E. Phillips) L.C. Leach
Stapelia knobelii E. Phillips
Common names:
Derivation of specific name: knobelii: after Johann Christian Knobel (1879-?), A missionary and trader who lived in Molepolole and collected the type specimen.
Habitat: Among shrubs in deep Kalahsri sand or on calcrete around pans.
Flowering time:
Worldwide distribution: Botswana and South Africa.
Botswana distribution: N,SW,SE
Growth form(s):
Endemic status:
Red data list status: Vulnerable
Insects associated with this species:
Spot characters: Display spot characters for this species

Bruyns, P.V. (2002). Monograph of Orbea and Ballyanthus (Apocynaceae-Asclepiadoideae-Ceropegieae) Systematic Botany Monographs 63 Pages 111 - 112. (Includes a picture).

Bruyns, P.V. (2005). Stapeliads of Southern Africa and Madagascar Volume I Umdaus Press, Hatfield, South Africa Pages 264 - 265. (Includes a picture).

Golding, J.S. (ed.) (2002). Botswana Plant Red Data List. Southern African Plant Red Data Lists. SABONET 14 Page 18. as Orbeopsis knobelii

Goyder, D.J., Gilbert, M.G. & Venter, H.J.T. (2020). Apocynaceae (Part 2) Flora Zambesiaca 7(2) Pages 217 - 219.

Leach, L.C. (1978). A contribution towards a new classification of Stapelieae (Asclepiadaceae) with a preliminary review of Orbea Haw. and descriptions of three new genera Excelsa Taxonomic Series No. 1 Aloe, Cactus and Succulent Society of Zimbabwe Page 65. As Orbeopsis knobelii

Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 28.

Other sources of information about Orbea knobelii:

External websites:

African Plants: A Photo Guide (Senckenberg): Orbea knobelii
BHL (Biodiversity Heritage Library): Orbea knobelii
EOL (Encyclopedia of Life): Orbea knobelii
ePIC (electronic Plant Information Center): Orbea knobelii
Flora Zambesiaca web site: Orbea knobelii
GBIF (Global Biodiversity Information Facility): Orbea knobelii
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network): Orbea knobelii
iNaturalist: Orbea knobelii
IPNI (International Plant Names Index): Orbea knobelii
JSTOR Plant Science: Orbea knobelii
Kew Herbarium catalogue: Orbea knobelii
Mansfeld World Database of Agricultural and Horticultural Crops: Orbea knobelii
Plants of the World Online: Orbea knobelii
Tropicos: Orbea knobelii
Wikipedia: Orbea knobelii

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2014-22

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2022). Flora of Botswana: Species information: Orbea knobelii.
https://www.botswanaflora.com/speciesdata/species.php?species_id=220480, retrieved 30 September 2022

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