Limnanthemum aquaticum
| Limnanthemum aquaticum (J. F. Gmelin) Britton, Trans. New York Acad. Sci. 9: 12. 1889. | Villarsia aquatica J. F. Gmelin 1791. | |
Limnanthemum lacunosum
| Limnanthemum lacunosum Grisebach, Gen. Sp. Gent. 347. 1838, nom. illegit. | Villarsia lacunosa Ventenat 1803, nom. illegit.; Villarsia aquatica J. F. Gmelin 1791. | |
Limnanthemum trachyspermum
| Limnanthemum trachyspermum A. Gray, Manual, ed. 5. 390. 1867, nom. illegit. | Menyanthes trachysperma Michaux 1803, nom. illegit.; Villarsia aquatica J. F. Gmelin 1791. | |
Menyanthes trachysperma
| Menyanthes trachysperma Michaux, Fl. Bor.-Amer. 1: 126. 1803, nom. illegit. | Villarsia aquatica J. F. Gmelin 1791. | |
Nymphoides lacunosa
| Nymphoides lacunosa Kuntze, Revis. Gen. Pl. 2: 429. 1891, nom. illegit. | Villarsia lacunosa Ventenat 1803, nom. illegit.; Villarsia aquatica J. F. Gmelin 1791. | |
Trachysperma aquaticum
| Trachysperma aquaticum (J. F. Gmelin) House, New York State Mus. Bull. 233/234: 65. 1922. | Villarsia aquatica J. F. Gmelin 1791. | |
Trachysperma lacunosum
| Trachysperma lacunosum House, New York State Mus. Bull. 233/234: 66. 1922. | Villarsia lacunosa Ventenat 1803, nom. illegit.; Villarsia aquatica J. F. Gmelin 1791. | |
Villarsia aquatica
| Villarsia aquatica J. F. Gmelin, Syst. Nat. 2: 447. 1791. | | SOUTH CAROLINA: Williamsburg Co.: 2 mi. NE of Lane, 10 Jul 1939, Godfrey & Tryon 405 (neotype: GH; isoneotypes: CA, CAS, F, NY, US). Neotypified by D. B. Ward, J. Bot. Res. Inst. Texas 1: 1094. 2007. |
Villarsia lacunosa
| Villarsia lacunosa Ventenat, Choix Pl. pl. 9. 1803, nom. illegit. | Villarsia aquatica J. F. Gmelin 1791. | |
Villarsia trachysperma
| Villarsia trachysperma Elliott, Sketch Bot. S. Carolina 1: 230. 1817, nom. illegit. | Menyanthes trachysperma Michaux 1803, nom. illegit.; Villarsia aquatica J. F. Gmelin 1791. | |