Compilation
Rhus tenuinervis

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Name

Identification
Rhus tenuinervis R.Fern. & A.Fern. [family ANACARDIACEAE ] Verified by Fernandes,R. & Fernandes,A., Rhus tenuinervis Engl. [family ANACARDIACEAE ] (stored under name);
Related name
  • Rhus kwebensis
  • Rhus acuminatissima
  • Rhus tenuinervis
  • Rhus commiphoroides
  • Rhus amboensis

Flora

Entry for Rhus tenuinervis [family ANACARDIACEAE]
Herbarium
South African National Biodiversity Institute, Compton Herbarium, Cape Town (SAM)
Collection
Flora of Southern Africa
Resource Type
Reference Sources
Entry From
Flora of South Africa, (2003) Author: Dr J.P. Roux
Names
Rhus tenuinervis [family ANACARDIACEAE]
Common names
Toxicodendron tenuinerve (Engl.) Kuntze: 154 (1891). R. commiphoroides Engl. & Gilg: 289 (1903); Engl.: 208, t. 103 A-D (1921); Schonl.: 71, t. p. 72 (1930); Burtt Davy: 505 (1932); O.B. Mill.: 46 (1952). Type: Angola, Kuito, be­tween Onschingue and Kutue, 1200 m, 1.3.1900, Baum 744 (Z, lecto.! here designated; COI!, G!, K!, M!, W!, isolecto.). R. amboensis Schinz: 639 (1908). Type: Namibia, Ovambo-land, Ojovu Ondonga, 31.1.1900, Rautanen 576 (Z, holo.!; M!, iso.). R. kwebensisN.E. Br.: 100(1909). Type: Botswana, Kwe-be hills, Lugard 200 (K, holo.!; BM!, GRA!, Z!, iso.).
Information
Much-branched, unarmed or occasionally spinescent shrub up to 3 m high. Bark granular, dull grey-brown; branchlets tomentose. Leaves trifoliolate, petiolate; petiole semiterete, shallowly canaliculate, tomentose, (3—)13(—33) mm long; leaflets sessile, papyraceous to sub-coriaceous, concolorous, olive-green above, slight­ly paler below, thinly sericeous above, densely pubescent-villous below, hypostomatous; lamina obovate to widely obovate, occasionally elliptic, base attenuate, apex obtuse to rounded, mucronu-late; margin crenate to bicrenate towards apex, slightly revolute; venation simple craspedodro-mous, midrib and secondaries impressed above, prominent below; terminal leaflets (10—) 30(—84) x (6-)20(-45) mm, lateral leaflets (7-)22 (-55) x (4-)14(-33) mm. Panicles lax, axillary and terminal, later up to 150 mm long, exposed, axillary within foliage. Flowers normal. Drupe rhombic, discoid, initially pruinose, latter shiny, dark brown, 4,8 x 1,7 to 6,7 x 2,4 mm.
Habitat
Usually found on sandy soils, termitaria and sometimes forming thickets in woodland. The olive-green, villous bicrenate leaflets with craspedodromous venation, as well as the rhombic, discoid fruits make this species distinct.
Use
25. Rhus tenuinervis Engl, in A. & C. DC, Monographiae phanerogamarum 4: 423 (1883); Diels: 578 (1898); Engl.: 208 (1921); Meikle: 100 (1954); Van der Veken: 35 (1960); White: 212 (1962); R. & A. Fernandes: 599 (1966); Merxm. & A. Schreib.: 13 (1968); Kokwaro: 32 (1986). Type: Angola, between Benguela and R. Catum-bela, Welwitsch 4418 (G-DC, holo.!; BM!, COI!, K!, LISU!, iso.).
Range
In Namibia ranges from Ovamboland in the west to eastern Caprivi and further through the eastern and central parts as far south as the Stampriet District. Scattered throughout Botswana and isolated plants occur across the border in the Monte Christo and Thabazimbi areas of the Transvaal and north of Vryburg in the northern Cape. Distributed further in Angola, Zambia, Zimbabwe, Mozambique, Malawi, Tan­zania, Kenya and Ethiopia. Flowering recorded in February and March. Map 22.

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