Sparganium minimum Wallr.

POWO follows these authorities in synonymising this name:

• Castroviejo, S. & al. (eds.) (2008). Flora Iberica 18: 1-420. Real Jardín Botánico, CSIC, Madrid. [Cited as Sparganium natans.]
• Chang, C.-S., Kim, H. & Chang, K.S. (2021). Checklist of Far East Asian Vascular Flora 1: 1-626. EABCN, Seoul. [Cited as Sparganium natans.]
• Govaerts, R. (2004). World Checklist of Monocotyledons Database in ACCESS: 1-54382. The Board of Trustees of the Royal Botanic Gardens, Kew. [Cited as Sparganium natans.]
• Naqinezhad, A. & Bidarlord, M. (2015). The genus Sparganium (Typhaceae) in Iran; two new additions for the Flora Iranica area. Iranian Journal of Botany 21: 30-34. [Cited as Sparganium natans.]
• Stace, C. (2019). New Flora of the British Isles ed. 4: 1-1266. C & M Floristics. [Cited as Sparganium natans.]
• Takhtajan, A.L. (ed.) (2006). Konspekt Flora Kavkaza 2: 1-466. Editio Universitatis Petropolitanae. [Cited as Sparganium natans.]
• Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis. [Cited as Sparganium natans.]
• Zhao, Y.Z., Zhao, L.Q. & Rui, C. (eds.) (2019). Flora Intramongolica, edition 3, 6: 1-619. Typis Intramongolicae popularis, Huhhot. [Cited as Sparganium natans.]

This name was accepted following an alternative taxonomy by these authorities:

• Dimopoulos, P., Raus, T., Bergmeier, E., Constantinidis, T., Iatrou, G., Kokkini, S., Strid, A., & Tzanoudakis, D. (2013). Vascular plants of Greece. An annotated checklist: 1-372. Botanic gardens and botanical museum Berlin-Dahlem, Berlin and Hellenic botanical society, Athens. [Cited as Sparganium minimum.]