Obetia tenax (N.E. Br.) Friis

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Obetia tenax

Photo: Bart Wursten
Maleme Dam camp

Obetia tenax

Photo: Bart Wursten
Maleme Dam camp

Obetia tenax

Photo: Bart Wursten
Maleme Dam camp

Obetia tenax

Photo: Bart Wursten
Maleme Dam camp

Obetia tenax

Photo: Bart Wursten
Ascending the Hill Complex by the Ancient Path, Great Zimbabwe

Obetia tenax

Photo: Bart Wursten
Ascending the Hill Complex by the Ancient Path, Great Zimbabwe

Obetia tenax

Photo: Bart Wursten
Ascending the Hill Complex by the Ancient Path, Great Zimbabwe

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

Synonyms: Urera tenax N.E. Br.
Common names: Rock tree-nettle (English) Ruvashe (Shona) Tree nettle (English)
Frequency:
Status: Native
Description:
Soft-wooded shrub or small deciduous tree. Bark bronze to pinkish-brown, smooth, watery latex present; branches often covered in stinging hairs. Leaves alternate, ovate to almost round, 5-15 cm long, slightly fleshy, 3-veined from the base with stinging hairs on both surfaces; apex often pointed, cordate at the base; margin coarsely and unevenly toothed. Flowers in short axillary clusters, whitish to yellowish-green, covered in stinging hairs, unisexual, normally on different plants.
Notes:
Derivation of specific name: tenax: tenacious, strong
Habitat: On rocky outcrops and hillsides, often in hot and dry places.
Altitude range: (metres) 1000 - 1400 m
Flowering time:Aug - Sep
Worldwide distribution: Botswana, Mozambique, Zimbabwe, Swaziland and South Africa as far as KwaZulu-Natal.
Zimbabwe distribution: N,W,C,E,S
Growth form(s): Tree.
Endemic status:
Red data list status:
Insects associated with this species: Acraea burni (Larval foodplant)
Spot characters: Display spot characters for this species
Images last updated: Friday 13 July 2012
Literature:

Coates Palgrave K. (revised and updated by Meg Coates Palgrave) (2002). Trees of Southern Africa 3rd edition. Struik, South Africa Page 155.

Da Silva, M.C., Izidine, S. & Amude, A.B. (2004). A preliminary checklist of the vascular plants of Mozambique. Southern African Botanical Diversity Network Report No. 30 Sabonet, Pretoria Page 116.

Drummond, R.B. (1975). A list of trees, shrubs and woody climbers indigenous or naturalised in Rhodesia. Kirkia 10(1) Page 234. As Urera tenax

Friis, I. (1991). Urticaceae Flora Zambesiaca 9(6) Pages 84 - 85. (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 82.

Schmidt, E., Lötter, M. & McCleland, W. (2002). Trees and shrubs of Mpumalanga and Kruger National Park Jacana, Johannesburg, South Africa Pages 86 - 89. (Includes a picture).

Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 109.

Van Wyk, B. & Malan, S. (1988). Field Guide to the Wild Flowers of the Witwatersrand and Pretoria Region Struik, Cape Town Pages 182 - 183. (Includes a picture).

Van Wyk, B. & Van Wyk, P. (1997). Field Guide to Trees of Southern Africa. Struik, South Africa Pages 246 - 247. (Includes a picture).


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Other sources of information about Obetia tenax:

Our websites:

Flora of Botswana: Obetia tenax
Flora of Mozambique: Obetia tenax

External websites:

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


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-16

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2016). Flora of Zimbabwe: Species information: Obetia tenax.
http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=120500, retrieved 28 July 2016

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