| Menyanthaceae | |
Villarsia albiflora
| F. Muell. | | |
| Menyanthaceae | |
Villarsia aquatica
| J.F. Gmel. | Syst. Nat., ed. 13[bis] 2: 306, 447 | 1791 |
| Menyanthaceae | |
Villarsia calthifolia
| F. Muell. | | |
| Menyanthaceae | |
Villarsia cambodiana
| Hance | J. Bot. 15: 335 | 1877 |
| Menyanthaceae | |
Villarsia capensis
| (Houtt.) Merr. | J. Arnold Arbor. 19(4360): 360–361 | 1938 |
| Menyanthaceae | |
Villarsia capitata
| Nees | | |
| Menyanthaceae | ** |
Villarsia chilensis
| G. Lodd. | Bot. Cab. 20: t. 1994 | 1833 |
| Menyanthaceae | |
Villarsia chilensis
| G. Lodd. ex Drapiez | Encyclogr. Règne Vég. 1: [unpaged] | 1833-1834 |
| Menyanthaceae | |
Villarsia congestiflora
| F. Muell. | | |
| Menyanthaceae | |
Villarsia cordata
| Elliott | Sketch Bot. S. Carolina 1(3): 230 | 1817 |
| Menyanthaceae | |
Villarsia crista-galli
| (Menzies ex Hook.) Griseb. | Gen. Sp. Gent. 338 | 1839 [1838] |
| Menyanthaceae | |
Villarsia cristata
| (Roxb.) Spreng. | Syst. Veg. [Sprengel] 1: 582 | 1825 [1824] |
| Menyanthaceae | |
Villarsia exiliflora
| F. Muell. | Fragm. 5: 46 | 1865 |
| Menyanthaceae | |
Villarsia geminatum
| R. Br. | Prodr. 1: 457 | 1810 |
| Menyanthaceae | |
Villarsia goldblattiana
| Ornduff | Novon 9(3): 40 | 1999 |
| Menyanthaceae | ! |
Villarsia humboldtiana
| Kunth | Nov. Gen. Sp. (quarto ed.) 3: 187 | 1818 [1819] |
| Menyanthaceae | |
Villarsia hydrocharoides
| F. Muell. | Fragm. 6: 139 | 1868 |
| Menyanthaceae | |
Villarsia indica
| (L.) Vent. | Choix Pl. t. 9bis | 1803 |
| Menyanthaceae | |
Villarsia lacunosa
| Vent. | Choix Pl. t. 9bis | 1803 |
| Menyanthaceae | |
Villarsia lasiosperma
| F. Muell. | | |
| Menyanthaceae | |
Villarsia latifolia
| Benth. | | |
| Menyanthaceae | |
Villarsia macrophylla
| Roem. & Schult. | Syst. Veg. (ed. 15 bis) 4: 180 | 1819 |
| Menyanthaceae | |
Villarsia manningiana
| Ornduff | Novon 11(4): 438 | 2001 |
| Menyanthaceae | |
Villarsia marchantii
| Ornduff | Syst. Bot. 15: 216 | 1990 |
| Menyanthaceae | |
Villarsia microphylla
| A. St.-Hil. | Voy. Distr. Diam. 2: 413 | 1833 |
| Menyanthaceae | |
Villarsia minima
| (F. Muell.) F. Muell. | Fragm. 4: 128 | 1864 |
| Menyanthaceae | |
Villarsia minor
| D. Don ex G. Don | | |
| Menyanthaceae | |
Villarsia nymphoidea
| St.-Lag. | Étude Fl. (ed. 8) 1: 581 | 1889 |
| Menyanthaceae | |
Villarsia nymphoides
| (L.) Vent. | Choix Pl. t. 9bis | 1803 |
| Menyanthaceae | |
Villarsia orbiculata
| Lam. | Tabl. Encycl. 1: 966 | 1791 |
| Menyanthaceae | ** |
Villarsia ovata
| (L. f.) Vent. | Choix Pl. t. 9bis | 1803 |
| Menyanthaceae | |
Villarsia parnassiifolia
| R. Br. | | |
| Menyanthaceae | |
Villarsia pumila
| Griseb. | Fl. Bor.-Amer. 2(8): 70–71, pl. 157, f. B | 1837 |
| Menyanthaceae | |
Villarsia reniformis
| R. Br. | | |
| Menyanthaceae | |
Villarsia rhomboidalis
| Dop | Bull. Soc. Bot. France 59: 146 | 1912 |
| Menyanthaceae | |
Villarsia senegalensis
| G. Don | Gen. Hist. 4: 169 | 1837 |
| Menyanthaceae | |
Villarsia submersa
| Aston | Muelleria 2: 19 | 1969 |
| Menyanthaceae | |
Villarsia umbricola
| Aston | Muelleria 2: 53 | 1969 |
| Menyanthaceae | |
Villarsia violifolia
| F. Muell. | | |