Tragia okanyua Pax

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Photo: Bart Wursten
By main Harare to Bulawayo Rd, south of Kwekwe

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Synonyms:	Tragia angustifolia sensu Engl. Tragia cordifolia sensu N.E. Br. Tragia madandensis S. Moore
Common names:
Frequency:
Status:	Native
Description:	Climbing perennial herb with stinging hairs. Stems twining or erect when young, up to 3 m long, growing from a woody rootstock, more or less densely hairy. Leaves ovate-lanceolate to oblong-lanceolate, up to c. 14 cm long, widely cordate at the 5-7-veined base, usually 2 rounded lobes, sparsely hairy to almost hairless on both surfaces, bristly on the midrib and veins below; margin dentate. Inflorescences terminal or leaf-opposed, up to 14 cm long on a peduncle up to 10 cm long. Flowers unisexual on the same inflorescence. Calyx of the female flowers densely covered in stiff hairs, consisting of 6 linear lobes; each lobe palmately divided into 9-13 linear lobes again (image 6). Fruit 3-lobed, c. 5 × 9 mm, smooth, yellow-green with rough hairs on the ribs of the lobes.
Notes:	See the similar T. kirkiana for comparison.
Derivation of specific name:
Habitat:	In riverine fringes, on rocky outcrops, in mopane and miombo woodland; also on Kalahari sand.
Altitude range: (metres)	Up to 1350 m
Flowering time:
Worldwide distribution:	Angola, Botswana, Namibia, Tanzania, Malawi, Mozambique, Zambia, Zimbabwe, and Mpumalanga, South Africa.
Zimbabwe distribution:	N,W,C,E,S
Growth form(s):	Climber.
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters:	Display spot characters for this species
Images last updated:	Thursday 29 January 2009
Literature:	Burrows, J.E. & Willis, C.K. (eds) (2005). Plants of the Nyika Plateau Southern African Botanical Diversity Network Report No. 31 SABONET, Pretoria Page 149. Chapano, C. & Mugarisanwa, N.H. (2003). Plants of the Matobo District National Herbarium and Botanic Garden, Zimbabwe Page 35. Heath, A. & Heath, R. (2009). Field Guide to the Plants of Northern Botswana including the Okavango Delta Kew Publishing Page 95. (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 43. Pickering, H. & Roe, E. (2009). Wild Flowers of the Victoria Falls Area Helen Pickering, London Page 63. (Includes a picture). Radcliffe-Smith, A. (1996). Euphorbiaceae Flora Zambesiaca 9(4) Pages 228 - 229. Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 58. Timberlake, J.R. & Childes, S.L. (2004). Biodiversity of the Four Corners Area: Technical Reviews Volume Two (Chapter 5-15) Appendix 5-1: Plant Checklist Occasional Publications in Biodiversity 15 Page 208.

Other sources of information about Tragia okanyua:

Our websites:

Flora of Botswana: Tragia okanyua
Flora of Caprivi: Tragia okanyua
Flora of Malawi: Tragia okanyua
Flora of Mozambique: Tragia okanyua
Flora of Zambia: Tragia okanyua

External websites:

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