Tribulus zeyheri Sond.
subsp. zeyheri

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Tribulus zeyheri subsp. zeyheri

Photo: Darrel Plowes
Beitbridge

Tribulus zeyheri subsp. zeyheri

Photo: Petra Ballings
By rd from Gwanda to Tuli, Dibilishaba CL

Tribulus zeyheri subsp. zeyheri

Photo: Bart Wursten
Near Shashe Wilderness Camp, Shashe River

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

Synonyms:
Common names: Calthrop (English) Large-flowered devil-thorns, (English)
Frequency:
Status: Native
Description:
Prostrate perennial herb. All parts covered in long bristle-like hairs. Leaves opposite, paripinnate, one leaf in a pair often longer than the other. Flowers solitary in leaf axils. Peduncle 1.5-2 times as long as, the subtending leaf. Petals bright yellow or white with a yellow centre, 10-20(-25) mm. Fruit a hard triangular drupe with sharp spines.
Notes: This species is very similar to the more widespread T. terrestris but is distinguished by the much larger flowers and shorter spines on the fruits.
Derivation of specific name: zeyheri: named after Carl Zeyher, 1799 - 1858, a German naturalist
Habitat: In dry open ground and over-grazed grassland.
Altitude range: (metres) Up to 700 m
Flowering time: Dec - Apr
Worldwide distribution: Arid regions of Angola, Botswana, Namibia, Zimbabwe and South Africa
Zimbabwe distribution: S
Growth form: A
Endemic status:
Red data list status:
Insects (whose larvae eat this species): Grammodes stolida (Stolid lines)
Spot characters: Display spot characters for this species
Content last updated: Thursday 8 June 2006
Literature:

Plowes, D.C.H. & Drummond, R.B. (1990). Wild Flowers of Zimbabwe. Revised edition. Longman, Zimbabwe. No. 65, plates 90 & 91


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Other sources of information about Tribulus zeyheri:

African Plant Database: Tribulus zeyheri
Biodiversity Explorer (Biodiversity of southern Africa): Tribulus zeyheri
EOL (Encyclopedia of Life): Tribulus zeyheri
ePIC (electronic Plant Information Center): Tribulus zeyheri
Flora Zambesiaca web site: Tribulus zeyheri
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network) taxonomy for plants report for Tribulus zeyheri
IPNI (International Plant Names Index): Tribulus zeyheri
JSTOR Plant Science: Tribulus zeyheri
Kew Herbarium catalogue: Tribulus zeyheri
Tropicos: Tribulus zeyheri
West African Plants database: Tribulus zeyheri


Copyright: Mark Hyde, Bart Wursten and Petra Ballings, 2002-13

Hyde, M.A., Wursten, B.T. & Ballings, P. (2013). Flora of Zimbabwe: Species information: Tribulus zeyheri subsp. zeyheri.
http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=132950, retrieved 18 May 2013

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