Najas horrida A.Braun ex Magnus

Native to:

Algeria, Botswana, Burundi, Cameroon, Cape Provinces, Caprivi Strip, Central African Repu, Chad, Egypt, Equatorial Guinea, Eritrea, Ethiopia, Ghana, Kenya, KwaZulu-Natal, Madagascar, Malawi, Mali, Mozambique, Namibia, Niger, Nigeria, Northern Provinces, Senegal, Sierra Leone, Sinai, Sudan, Tanzania, Togo, Uganda, Zambia, Zaïre, Zimbabwe

POWO follows these authorities in accepting this name:

• Boulos, L. (2005). Flora of Egypt 4: 1-617. Al Hadara Publishing, Cairo.
• Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
• Dobignard, D. & Chatelain, C. (2010). Index synonymique de la flore d'Afrique du nord 1: 1-455. Éditions des conservatoire et jardin botaniques, Genève.
• Edwards, S., Demissew, S. & Hedberg, I. (eds.) (1997). Flora of Ethiopia and Eritrea 6: 1-586. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
• Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.
• Timberlake, J.R. & Martins, E.S. (eds.) (2009). Flora Zambesiaca 12(2): 1-208. Royal Botanic Gardens, Kew.
• Triest, L. (1989). Najadaceae. Flora of Tropical East Africa: 1-9.

An alternative taxonomy had been proposed by the following authorities:

• Maire, R. (1952). Flore de l'Afrique du Nord 1: 1-366. Paul Lechevalier, Paris. [Cited as Najas pectinata.]
• Triest, L. & Symoens, J.J. (1983). Flore d'Afrique Centrale (Zaïre - Rwanda - Burundi) Najadaceae: 1-9. Jardin Botanique National de Belgique, Meise. [Cited as Najas pectinata.]

Flora Zambesiaca

• Bennett in F.T.A. 8 228 (1901) for most part.
• Clarke & Klaassen, Water Pl. Namibia: 19, 66 (2001).
• Cook, Aq. Wetl. Pl. Sthn. Africa: 186, 192 (2004).
• Magnus, Beitr. Kenntn. Najas 7: 46 (1870).
• Rendle in Trans. Linn. Soc., Bot. 5: 422, t.42 figs.183–191 (1899) in part.
• Süssenguth in Mitt. Bot. Staatssamml. München 8 339 (1953).
• Triest 22(1): 91 (1988) Acad. Roy. Sci. Outre-Mer, Cl. Sci. Nat. Méd;
• Triest in F.T.E.A., Najadaceae: 5, fig.2 (1989).
• Triest in Mém. Acad. Roy. Sci. Outre-Mer, Cl. Sci. Nat. Méd. 21 4): 44–52, t.8–10, fig.5 (1987);

Kew Backbone Distributions

• Boulos, L. (2005). Flora of Egypt 4: 1-617. Al Hadara Publishing, Cairo.
• Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.
• Edwards, S., Demissew, S. & Hedberg, I. (eds.) (1997). Flora of Ethiopia and Eritrea 6: 1-586. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
• Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa: an annotated checklist. Strelitzia 14.: i-vi, 1-1231. National Botanical Institute, Pretoria.
• Hepper, F.N. (ed.) (1968). Flora of West Tropical Africa, ed. 2, 3(1): 1-276.
• Timberlake, J.R. & Martins, E.S. (eds.) (2009). Flora Zambesiaca 12(2): 1-208. Royal Botanic Gardens, Kew.
• Triest, L. & Symoens, J.J. (1983). Flore d'Afrique Centrale (Zaïre - Rwanda - Burundi) Najadaceae: 1-9. Jardin Botanique National de Belgique, Meise.

Flora of Tropical East Africa

• A. Bennett in Flora of Tropical Africa 8: 228 (1901).
• A. Engler & O. Drude, Die Vegetation Der Erde, IX, Pflanzenwelt Afrikas 2: 98 (1908).
• Magn., Beitr.: vii, 46, 47 (1870).
• Peter, Wasserpfl. & Sumpfgew. Deutsch-Ostafr.: 108 (1928).
• Rendle in A. Engler, Das Pflanzenreich IV. 12: 17, figs. 2, 5N-P (1901).
• Rendle in Trans. Linn. Soc., Bot., ser. 2, 5: 42, t. 42/183-191 (1899), pro majore parte,
• Triest in Mém. Acad. Roy. Sci. Outre-Mer, Cl. Sci. Nat Méd., nouv. sér. in -8° (et Et. Cont. Afr., 6) 21: 44, fig. 5, t. VIII, IX & X (1987).
• Van Meel, Explor. Hydrobiol. Lac Tanganika (1946-1947) 4, 1 A: 90, 108, 114 (table 4) (1954).
• Van Meel, Explor. Hydrobiol. Lac Tanganika (1946-1947) I: 52, 67 (1952)