Lisianthius saponarioides Schltdl. & Cham. in Linnaea 6: 389. 1831 sec. Sosa 1995
- =Leianthus saponarioides (Schltdl. & Cham.) Griseb., Gen. Sp. Gent.: 198–199. 1838 ["1839"] syn. sec. ???
- =Petasostylis saponarioides (Schltdl. & Cham.) Griseb., Prodr. 9: 71. 1845 syn. sec. ???
- =Lisianthius meianthus Donn. Sm. in Bot. Gaz. 52(1): 51–52. 1911 syn. sec. ???
- =Lisianthius congestus Standl. in Publ. Carnegie Inst. Wash. 461(4): 82. 1935 syn. sec. ???