Barleria rigida Willd. ex Nees

Native to:

Botswana, Cape Provinces, Free State, Namibia

POWO follows these authorities in accepting this name:

• Darbyshire, I., Vollesen, K. & Kelbessa, E. (2015). Flora Zambesiaca 8(6): 1-314. Royal Botanic Gardens, Kew.
• Govaerts, R. (1996). World Checklist of Seed Plants 2(1, 2): 1-492. MIM, Deurne.

Kew Bulletin

• Balkwill, M. J. & Balkwill, K. (1997). Delimitation and infra-generic classification of Barleria (Acanthaceae). Kew Bull. 52: 535 – 573.
• Clarke, C. B. (1901). Barleria. In: W. T. Thiselton-Dyer (ed.), Flora Capensis. Vol. 5 (Pt. 1): 44 – 55 . L. Reeve & Co., London.
• Craven, P. (ed.) (1999). A checklist of Namibian plant species. South African Botanical Diversity Network Report No. 7, SABONET, Windhoek.
• Darbyshire, I. (2015). Barleria. In: J. R. Timberlake & E. S. Martins (eds), Flora Zambesiaca. Vol. 8 (6): 37 – 122. Royal Botanic Gardens, Kew.
• Darbyshire, I., Tripp, E. A. & Dexter, K. G. (2012). A new species and a revised record in Namibian Barleria (Acanthaceae). Kew Bull. 67: 759 – 766.
• Dinter, K. (1918). Index der aus Deutsch-Südwestafrika bis zum jahre 1917 bekannt gewordenen pflanzenarten. II. Repert. Spec. Nov. Regni Veg. 15: 340 – 355.
• Klaassen, E. & Kwembeya, E. (eds) (2013). A checklist of Namibian indigenous and naturalised plants. Occasional Contributions No. 5, National Botanical Research Institute, Windhoek.
• Klopper, R. R., Chatelain, C., Bänninger, V., Habashi, C., Steyn, H. M., de Wet, B. C., Arnold, T. H., Gautier, L., Smith, G. E. & Spichiger, R. (2006). Checklist of the flowering plants of sub-Saharan Africa. An index of accepted names and synonyms. South African Botanical Diversity Network Report No. 42, SABONET, Pretoria.
• Mannheimer, C. (2012). Wildflowers of the Central Highlands of Namibia. MacMillan Namibia, Windhoek.
• Mendelsohn, J., Jarvis, A., Roberts, C. & Robertson, T. (2002). Atlas of Namibia. A portrait of the land and its people. Ministry of Environment & Tourism and David Philip, Cape Town.
• Meyer, P. G. (1957). Beitrag zur Kenntnis der Acanthaceen Südwestafrikas. Mitt. Bot. Staatssamml. München 2: 368 – 385.
• Meyer, P. G. (1968). 130. Acanthaceae. In H. Merxmüller (ed.), Prodromus einer Flora von Südwestafrika. J. Cramer, Germany.
• Nees von Esenbeck, C. G. D. (1847). Acanthaceae. In: A. de Candolle (ed.), Prodromus Systematis Naturalis Regni Vegetabilis. Vol. 11: 46 – 51. Masson, Paris.
• Nyirenda, F. C. (2012). Morphological variation in five related species of Barleria (Acanthaceae). Unpubl. M.Sc. thesis, University of the Witwatersrand, Johannesburg.
• Obermeyer, A. A. (1933). A revision of the South African species of Barleria. Ann. Transvaal Mus. 15: 123 – 180.
• Welman, W. G. (2003). Acanthaceae. In: G. Germishuizen & N. L. Meyer (eds), Plants of southern Africa: an annotated checklist. Strelitzia 14: 92 – 106. National Botanical Institute, Pretoria.

Flora Zambesiaca

• in De Candolle, Prodr. 11: 242 (1847).
• —Meyer in Merxmüller, Prodr. Fl. SW Afr. 130: 16 (1968).
• —Obermeijer in Ann. Transv. Mus. 15: 153 (1933).

Kew Backbone Distributions

• Darbyshire, I., Vollesen, K. & Kelbessa, E. (2015). Flora Zambesiaca 8(6): 1-314. Royal Botanic Gardens, Kew.