Wigandia urens (Ruiz & Pav.) Kunth, Nov. Gen. Sp. (quarto ed.) 3: 127. 1819 sec. ???
- ≡Hydrolea urens Ruiz & Pav., Fl. Peruv. 3: 21–22, pl. 243. 1802 syn. sec. The Plant List 2013
- =Wigandia kunthii Choisy in Mém. Soc. Phys. Genève 6: 116. 1833 syn. sec. The Plant List 2013
- =Ernstamra urens (Ruiz & Pav.) Kuntze, Revis. Gen. Pl. 2: 434. 1891 syn. sec. ???
- =Wigandia peruviana W. Mill., Cycl. Amer. Hort.: 1975. 1902 syn. sec. The Plant List 2013
- =Wigandia kunthii var. eukunthii Brand, Pflanzenr. (Engler) 4, Fam. 251: 137. 1913 syn. sec. The Plant List 2013