Wolffiella welwitschii (Hegelm.) Monod in Mém. Soc. Hist. Nat. Afrique N Hors-ser. 2: 229. 1949 sec. Espejo-Serna & López-Ferrari 2008
- ≡Wolffia welwitschii Hegelm. in J. Bot. 3: 114. 1865 syn. sec. Espejo-Serna & López-Ferrari 2008
- =Wolffiopsis welwitschii (Hegelm.) Hartog & Plas in Blumea 18: 366. 1970 syn. sec. Espejo-Serna & López-Ferrari 2008