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Synonyms: |
Gongrothamnus aurantiacus O. Hoffm. Gongrothamnus divaricatus Steetz Vernonia aurantiaca (O. Hoffm.) N.E.Br. |
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Description: |
Climbing shrub, often scrambling over other vegetation, to 8 m. Leaves: petiole to c. 2 cm; lamina 2.5-12 × 1.5-10 cm, broadly ovate to lanceolate, sparsely puberulent above, whitish-tomentellous beneath, strongly 3-nerved from base; base cuneate; apex ± long-acuminate; margin entire to remotely serrate. Capitula numerous, in dense ± spherical clusters. Involucre 4-7 × 3-6 mm. Phyllaries numerous, mealy-hairy outside with a mucronate apex and ciliate margin. Corolla 7-10 mm, orange-yellow. Achenes 1.2-2.5 mm, narrowly obovoid-cylindric, somewhat angular or faintly ribbed. Pappus with an outer whorl of short linear setae and an inner of barbellate setae 4-6.5 mm. |
Notes: | |
Derivation of specific name: | divaricatus: widely divergent |
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Worldwide distribution: | Zambia, Angola, Rwanda, Kenya, Tanzania, Malawi, Mozambique, Zimbabwe, South Africa. |
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Spot characters: | Display spot characters for this species |
Literature: |
Burrows, J.E., Burrows, S.M., Lötter, M.C. & Schmidt, E. (2018). Trees and Shrubs Mozambique Publishing Print Matters (Pty), Cape Town. Page 1025. (Includes a picture). Chapano, C. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 22. Drummond, R.B. (1975). A list of trees, shrubs and woody climbers indigenous or naturalised in Rhodesia. Kirkia 10(1) Page 278. As Gongrothamnus divaricatus 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 29. as Vernonia aurantiaca Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Pope, G.V. (1992). Compositae Flora Zambesiaca 6(1) Pages 69 - 70. As Vernonia aurantiaca Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 32. 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 200. As Vernonia aurantiaca Wild, H. (1978). The Compositae of the Flora Zambesiaca area. 8. Vernonieae (Vernonia). Kirkia 11(1) Pages 111 - 112. |
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