Rhigozum brevispinosum Kuntze

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Photo: Orty Bourquin
Modisa Wildlife Project,Grassland Game Farm, Ghanzi district.

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Synonyms:	Rhigozum linifolium S. Moore Rhigozum spinosum Burch. ex Sprague
Common names:	Simple-leaved rhigozum (English)
Frequency:
Status:	Native
Description:	Shrub or multi-stemmed small tree up to c. 3 m tall. Branches rigid, squarish and twisted, armed with short spines. Leaves in opposite clusters on small woolly spurs, sub-sessile, simple or rarely 3-foliolate, narrowly oblanceolate, 2-5 cm long, grey-green, mostly hairless when mature; apex rounded to notched; margin entire. Flowers appearing with the leaves, showy, golden yellow, 2-4 cm in diameter, petals wrinkled along the edges, solitary or in few-flowered clusters among the leaves. Fruit a flattened slender capsule, c. 7 × 1.2 cm, light green to pale brown with a sharply pointed tip, dehiscent.
Notes:
Derivation of specific name:	brevispinosum: with short spines.
Habitat:	In dry scrub and open woodland, on sandy soils or limestone rocky outcrops.
Flowering time:	Sep - Dec
Worldwide distribution:	Angola, Botswana, Namibia, Zambia, Zimbabwe, Northern Cape and Limpopo, South Africa.
Botswana distribution:	N
Growth form(s):	Tree, shrub over 2 m.
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters:	Display spot characters for this species
Content last updated:	Monday 21 March 2016
Literature:	Coates Palgrave, K. (revised and updated by Meg Coates Palgrave) (2002). Trees of Southern Africa 3rd edition. Struik, South Africa Page 1008. Curtis, B.A. & Mannheimer, C.A. (2005). Tree Atlas of Namibia National Botanic Research Institute, Windhoek Pages 590 - 591. (Includes a picture). Diniz, M.A. (1988). Bignoniaceae Flora Zambesiaca 8(3) Pages 67 - 68. Drummond, R.B. (1975). A list of trees, shrubs and woody climbers indigenous or naturalised in Rhodesia. Kirkia 10(1) Page 273. Kirby, G. (2013). Wild Flowers of Southeast Botswana Struik Nature, Cape Town South Africa Page 152. (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 30. Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 36. Roodt, V. (1998). Trees and Shrubs of the Okavango Delta Shell Field Guide Series: Part I Shell Oil Botswana, Gaberone. Pages 60 - 61. (Includes a picture). Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 40. Van Wyk, B. & Van Wyk, P. (1997). Field Guide to Trees of Southern Africa. Struik, South Africa Pages 120 - 121. Van Wyk, B. & Van Wyk, P. (2013). Field Guide to Trees of Southern Africa (Second edition) Struik, South Africa Pages 134 - 135. (Includes a picture).

Other sources of information about Rhigozum brevispinosum:

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Flora of Caprivi: Rhigozum brevispinosum
Flora of Zambia: Rhigozum brevispinosum
Flora of Zimbabwe: Rhigozum brevispinosum

External websites:

African Plants: A Photo Guide (Senckenberg): Rhigozum brevispinosum
African Plant Database: Rhigozum brevispinosum
BHL (Biodiversity Heritage Library): Rhigozum brevispinosum
EOL (Encyclopedia of Life): Rhigozum brevispinosum
GBIF (Global Biodiversity Information Facility): Rhigozum brevispinosum
Google: Web - Images - Scholar
iNaturalist: Rhigozum brevispinosum
IPNI (International Plant Names Index): Rhigozum brevispinosum
JSTOR Plant Science: Rhigozum brevispinosum
Mansfeld World Database of Agricultural and Horticultural Crops: Rhigozum brevispinosum
Plants of the World Online: Rhigozum brevispinosum
Tropicos: Rhigozum brevispinosum
Wikipedia: Rhigozum brevispinosum