Rotala nashii merupakan tumbuhan air (hidrofit) dari famili Lythraceae yang hidup semusim. Tumbuhan ini berasal dari bioma beriklim tropis kering di wilayah Zambia utara.
POWO (2024). "Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; https://powo.science.kew.org/."
IPNI (2024). "International Plant Names Index. Published on the Internet http://www.ipni.org, The Royal Botanic Gardens, Kew, Harvard University Herbaria & Libraries, and Australian National Herbarium"
