Orbea lutea (N.E. Br.) Bruyns
subsp. lutea

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Orbea lutea subsp. lutea

Photo: Dewald du Plessis
5 Palms Pan, Gweta

Orbea lutea subsp. lutea

Photo: Dewald du Plessis
5 Palms Pan, Gweta

Orbea lutea subsp. lutea

Photo: Dewald du Plessis
5 Palms Pan, Gweta

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Species details: Click on each item to see an explanation of that item (Note: opens a new window)

Synonyms: Caralluma lutea N.E. Br.
Orbeopsis lutea (N.E. Br.) L.C. Leach
Common names:
Frequency:
Status: Native
Description:
Succulent herb, forming mats up to more than 1 m in diameter. Stems up to 12 cm high, grey-green mottled with red-brown; tubercular teeth flattened, triangular, 6-10 mm long. Inflorescences 1 or 2 in the lower half of the stems, 3-30 flowered, often opening more or less simultaneously. Sepals lanceolate-ovate, pointed, 5-8 mm long. Corolla 35-65 mm in diameter, spreading, star-shaped; smooth pale creamy-green to yellow; inside rough and papillate except in the tube, from yellow (in South Africa) to reddish-brown or maroon (Botswana and Zimbabwe), sometimes blotched with yellow; lobes narrowly lanceolate, spreading, 18-35 mm long. Corona with outer lobes wider than long, emarginate to toothed at the apex but more or less rectangular and almost touching as to form a cup, yellow, often with reddish ridges.
Notes: Despite the name flower colour is very variable. Only in South Africa are most specimens yellow and specimens from Zimbabwe are dark red to maroon.
Derivation of specific name: lutea: yellow (but see note)
Habitat: Open Acacia woodland on stony ground often on calcrete.
Altitude range: (metres) 500 - 1500 m
Flowering time:
Worldwide distribution: Botswana, Zimbabwe, South Africa
Zimbabwe distribution: W
Growth form(s):
Endemic status:
Red data list status: Vulnerable
Insects associated with this species:
Spot characters: Display spot characters for this species
Images last updated: Tuesday 17 March 2020
Literature:

Bruyns, P.V. (2002). Monograph of Orbea and Ballyanthus (Apocynaceae-Asclepiadoideae-Ceropegieae) Systematic Botany Monographs 63 Pages 113 - 115.

Fabian, A. & Germishuizen, G. (1997). Wild Flowers of Northern South Africa. Fernwood Press, Vlaeburg. Pages 322 - 323. as Orbeopsis lutea subsp. lutea (Includes a picture).

Golding, J.S. (ed.) (2002). Zimbabwe Plant Red Data List. Southern African Plant Red Data Lists. SABONET 14 Page 162.

Kirby, G. (2013). Wild Flowers of Southeast Botswana Struik Nature, Cape Town South Africa Page 123. (Includes a picture).

Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 21.

Pooley, E. (1998). A Field Guide to the Wild Flowers of KwaZulu-Natal and the Eastern Region. Natal Flora Publications Trust. Durban. Pages 302 - 303. (Includes a picture).

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

Van Wyk, B. & Malan, S. (1988). Field Guide to the Wild Flowers of the Witwatersrand and Pretoria Region Struik, Cape Town Pages 96 - 97. as Orbeopsis lutea subsp. lutea (Includes a picture).


Other sources of information about Orbea lutea subsp. lutea:

Our websites:

Flora of Botswana: Orbea lutea subsp. lutea

External websites:

African Plants: A Photo Guide (Senckenberg): Orbea lutea
African Plant Database: Orbea lutea
BHL (Biodiversity Heritage Library): Orbea lutea
EOL (Encyclopedia of Life): Orbea lutea
ePIC (electronic Plant Information Center): Orbea lutea
Flora Zambesiaca web site: Orbea lutea
GBIF (Global Biodiversity Information Facility): Orbea lutea
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network): Orbea lutea
iNaturalist: Orbea lutea
IPNI (International Plant Names Index): Orbea lutea
JSTOR Plant Science: Orbea lutea
Kew Herbarium catalogue: Orbea lutea
Mansfeld World Database of Agricultural and Horticultural Crops: Orbea lutea
Plants of the World Online: Orbea lutea
The Plant List (version 1.1): Orbea lutea
Tropicos: Orbea lutea
Wikipedia: Orbea lutea


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-20

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2020). Flora of Zimbabwe: Species information: Orbea lutea subsp. lutea.
https://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=146690, retrieved 19 September 2020

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