Trapa natans var. bispinosa (Roxb.) Makino

Native to:

Amur, Angola, Assam, Bangladesh, Botswana, Burkina, Cameroon, Central African Republic, Chad, China North-Central, China South-Central, China Southeast, Congo, DR Congo, East Himalaya, Gabon, Gambia, Guinea-Bissau, India, Japan, Jawa, Kenya, Korea, Laos, Malawi, Manchuria, Mozambique, Namibia, Nigeria, Pakistan, Philippines, Primorye, Sri Lanka, Sudan-South Sudan, Taiwan, Tanzania, Thailand, Uganda, Vietnam, West Himalaya, Zambia, Zimbabwe

Introduced into:

Nansei-shoto

POWO follows these authorities in accepting this name:

• Barooah, C. & Ahmed, I. (2014). Plant diversity of Assam. A checklist of Angiosperms and Gymnosperms: 1-599. Assam science technology and environment council, India.
• Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(1): 1-85. ORSTROM, Bangui.
• Catarino, L., Sampaio Martins, E., Pinto-Basto, M.F. & Diniz, M.A. (2006). Plantas Vasculares e Briófitos da Guiné-Bissau: 1-298. Instituto de investigação científica tropical, Instituto Português de apoio ao desenvolvimento.
• Dar, G.H. & Govaerts, R.H.A. (2025). Flora of Kashmir Himalaya: Sind Valley 1: 1-606. Bishen Singh Mahendra Pal Singh, Dehradun, India.
• 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.
• Ding, B. & Jin, X. (2020). Taxonomic notes on genus Trapa L. (Trapaceae) in China. Guihaia 40: 1-15.
• Figueiredo, E. & Smith, G.F. (2008). Plants of Angola. Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
• Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist. Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
• Hutchinson, J., Dalziel, J.M. & Keay, R.W.J. (1954-1958). Flora of West Tropical Africa, ed. 2, 1: 1-828.
• Kotiya, A., Solanki, Y. & Reddy, G.V. (2020). Flora of Rajasthan: 1-769. Rajasthan state biodiversity board.
• Launert, E. (ed.) (1978). Flora Zambesiaca 4: 1-658. Royal Botanic Gardens, Kew.
• Mao, A.A. & Dash, S.S. (2020). Flowering Plants of India an Annotated Checklist (Dicotyledons) 1: 1-970. Botanical Survey of India.
• Meena, S.L. (2012). A checklist of the vascular plants of Banaskantha district, Gujarat, India. Nelumbo 54: 39-91.
• Sikarwar, R.L.S. (2014). Angiosperm diversity assessment of Chitrakootthe legendary place of Vindhyan range, India. Journal of Economic and Taxonomic Botany 38: 563-619.
• Singh, M. & Ali, S.J. (2008). A study on aquatic Angiosperms of district Mau (East U.P.). Journal of East African Natural History 32: 877-890.
• Singh, N.P. & al. (eds.) (2002). Flora of Mizoram 1: 1-845. Botanical Survey of India.

An alternative taxonomy had been proposed by the following authorities:

• Chang, C.S., Kim, H. & Chang, K.S. (2014). Provisional checklist of vascular plants for the Korea peninsula flora (KPF): 1-660. DESIGNPOST. [Cited as Trapa natans.]
• Dobignard, A. & Chatelain, C. (2012). Index synonymique de la flore d'Afrique du nord 4: 1-431. Éditions des conservatoire et jardin botaniques, Genève. [Cited as Trapa natans.]
• Lebrun, J.-P., Audru, J., Gaston, A. & Mosnier, M. (1972). Catalogue des Plantes Vasculaires du Tchad Méridional: 1-289. Institut d' Elevage et de Médecine Vétérinaire des Pays Tropicaux, Maisons Alfort. [Cited as Trapa natans.]

Kew Backbone Distributions

• Barooah, C. & Ahmed, I. (2014). Plant diversity of Assam. A checklist of Angiosperms and Gymnosperms: 1-599. Assam science technology and environment council, India.
• Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(1): 1-85. ORSTROM, Bangui.
• Dar, G.H. & Govaerts, R.H.A. (2025). Flora of Kashmir Himalaya: Sind Valley 1: 1-606. Bishen Singh Mahendra Pal Singh, Dehradun, India.
• 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.
• Dassanayake (ed.) (1999). A Revised Handbook to the Flora of Ceylon 13: 1-284. Oxford & IBH Publishing Co. PVT. LTD., New Delhi, Calcutta.
• Ding, B. & Jin, X. (2020). Taxonomic notes on genus Trapa L. (Trapaceae) in China. Guihaia 40: 1-15.
• Figueiredo, E. & Smith, G.F. (2008). Plants of Angola. Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
• Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist. Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
• Hutchinson, J., Dalziel, J.M. & Keay, R.W.J. (1954-1958). Flora of West Tropical Africa, ed. 2, 1: 1-828.
• Iwatsuki, K., Boufford, D.E. & Ohba, H. (eds.) (1999). Flora of Japan IIc: 1-328. Kodansha Ltd., Tokyo.
• Kozhevnikov, A.E., Kozhevnikov, Z.V., Kwak, M. & Lee, B.Y. (2019). Illustrated flora of the Primorsky Territory, Russian Far East: 1-1124. National institute of biological resources.
• Launert, E. (ed.) (1978). Flora Zambesiaca 4: 1-658. Royal Botanic Gardens, Kew.
• Lebrun, J.-P., Audru, J., Gaston, A. & Mosnier, M. (1972). Catalogue des Plantes Vasculaires du Tchad Méridional: 1-289. Institut d' Elevage et de Médecine Vétérinaire des Pays Tropicaux, Maisons Alfort.
• Lebrun, J.P., Toutain, B., Gaston, A. & Boudet, G. (1991). Catalogue des Plantes Vasculaires du Burkina Faso: 1-341. Institut d' Elevage et de Médecine Vétérinaire des Pays Tropicaux, Maisons Alfort.
• Lê, T.C. (2003). Danh lục các loài thực vật Việt Nam 2: 1-1203. Hà Nội : Nhà xuất bản Nông nghiệp.
• Mao, A.A. & Dash, S.S. (2020). Flowering Plants of India an Annotated Checklist (Dicotyledons) 1: 1-970. Botanical Survey of India.
• Nasir, E. & Ali, S.I. (eds.) (1970-1995). Flora of West Pakistan 1-131.
• Newman, M., Ketphanh, S., Svengsuksa, B., Thomas, P., Sengdala, K., Lamxay, V. & Armstrong, K. (2007). A checklist of the vascular plants of Lao PDR: 1-394. Royal Botanic Gardens, Edinburgh.
• Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
• Santisuk, T. & Balslev, H. (eds.) (2014). Flora of Thailand 11(4): 499-666. The Forest Herbarium, Royal Forest Department.
• Singh, M. & Ali, S.J. (2008). A study on aquatic Angiosperms of district Mau (East U.P.). Journal of East African Natural History 32: 877-890.
• Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
• Sosef, M.S.M. & al. (eds.) (2023). Flore du Gabon 61: 1-114. Muséum National D'Histoire Naturelle, Paris; Margraf Publishers, Weikersheim; Meise Botanic Garden.
• Starchenko, V.M., Darman, G.F. & Bolotova, Y.V. (2008). Floristic records in the Amur region. Botanicheskii Zhurnal. Moscow & Leningrad 93: 476-481.