| Hydroleaceae | |
Hydrolea affinis
| A. Gray | Manual (ed. 5) 370 | 1867 |
| Hydroleaceae | |
Hydrolea albiflora
| (Chodat & Hassl.) Brand | Pflanzenr. IV. 251(Heft 59): 182–183 | 1913 |
| Hydroleaceae | ** |
Hydrolea angustifolia
| Cerv. ex Brand | Pflanzenr. IV. 251: 184 | 1913 |
| Hydroleaceae | |
Hydrolea arayatensis
| Blanco | Fl. Filip. 211 | 1837 |
| Hydroleaceae | * |
Hydrolea barteri
| Peter | Nat. Pflanzenfam. 4, 3a: 71 | 1893 |
| Hydroleaceae | ** |
Hydrolea bartramii
| Choisy | Mém. Soc. Phys. Genève 6: 109 | 1833 |
| Hydroleaceae | |
Hydrolea brevistyla
| Verdc. | Fl. Trop. E. Africa Hydrophyllaceae: 4, t. 19 | 1989 |
| Hydroleaceae | |
Hydrolea capsularis
| (L.) Druce | Bot. Exch. Club Soc. Brit. Isles 3: 419 | 1914 |
| Hydroleaceae | ** |
Hydrolea caroliniana
| Michx. | Fl. Bor.-Amer. 1: 177 | 1803 |
| Hydroleaceae | ** |
Hydrolea ceilonica
| F. Muell. | Fragm. 5: 335 | 1895 |
| Hydroleaceae | |
Hydrolea cervantesii
| Brand | Pflanzenr. IV. 251(Heft 59): 184 | 1913 |
| Hydroleaceae | |
Hydrolea congesta
| Willd. ex Roem. & Schult. | Syst. Veg. (ed. 15 bis) 6: 192 | 1820 |
| Hydroleaceae | |
Hydrolea corymbosa
| J. Macbr. ex Elliott | Sketch Bot. S. Carolina 1(4): 336 | 1817 |
| Hydroleaceae | |
Hydrolea crispa
| Tafalla ex Ruiz & Pav. | Fl. Peruv. 3: 22, t. 244 | 1802 |
| Hydroleaceae | |
Hydrolea cryptantha
| Brand | Pflanzenr. IV. 251(Heft 59): 183 | 1913 |
| Hydroleaceae | |
Hydrolea cubana
| Alain | Contr. Ocas. Mus. Hist. Nat. Colegio "De La Salle" 16: 250 | 1957 |
| Hydroleaceae | ** |
Hydrolea decurrens
| Moc. ex Choisy | Prodr. 10: 181 | 1846 |
| Hydroleaceae | |
Hydrolea dichotoma
| Ruiz & Pav. | Fl. Peruv. 3: 22–23, pl. 244, f. b | 1802 |
| Hydroleaceae | |
Hydrolea elatior
| Schott | Syst. Veg. [Sprengel] 4(2): 404 | 1827 |
| Hydroleaceae | |
Hydrolea elegans
| A.W. Benn. | J. Linn. Soc., Bot. 11: 271–272, t. 1, f. 5–6 | 1871 |
| Hydroleaceae | ** |
Hydrolea exaltata
| Schott ex Steud. | Nomencl. Bot. (ed. 2) 1: 782 | 1840 |
| Hydroleaceae | |
Hydrolea extra-axillaris
| C. Morren | Ann. Soc. Roy. Agric. Gand 2: 321–322, pl. 79 | 1846 |
| Hydroleaceae | |
Hydrolea floribunda
| Kotschy & Peyr. | Pl. Tinn. 22, t. 9B | 1867 |
| Hydroleaceae | ! |
Hydrolea glabra
| Schumach. & Thonn. | Beskr. Guin. Pl. 161–162 | 1827 |
| Hydroleaceae | * |
Hydrolea glabra
| Choisy ex DC. | Prodr. 10: 181 | 1846 |
| Hydroleaceae | * |
Hydrolea glabra
| Choisy | Mém. Soc. Phys. Genève 6(1): 110–111 | 1833 |
| Hydroleaceae | |
Hydrolea graminifolia
| A.W. Benn. | J. Linn. Soc., Bot. 11: 277, t. 1, f. 12 | 1871 |
| Hydroleaceae | * |
Hydrolea guineensis
| Choisy | Ann. Sci. Nat., Bot., sér. 2, 1: 180 | 1834 |
| Hydroleaceae | |
Hydrolea inermis
| Lour. | Fl. Cochinch. 1: 172 | 1790 |
| Hydroleaceae | |
Hydrolea jamaicensis
| (L.) Raeusch. | Nomencl. Bot. (ed. 3) 76 | 1797 |
| Hydroleaceae | |
Hydrolea javanica
| Blume | Bijdr. Fl. Ned. Ind. (13): 725 | 1825 [1826] |
| Hydroleaceae | |
Hydrolea latifolia
| Raf. | Atlantic J. 1: 146 | 1832 |
| Hydroleaceae | |
Hydrolea leptocaulis
| Featherm. | Rep. (Annual) Board Supervisors Louisiana State Seminary Learning Military Acad. 1870: 72, 100 | 1871 |
| Hydroleaceae | |
Hydrolea ludoviciana
| Featherm. | Rep. (Annual) Board Supervisors Louisiana State Seminary Learning Military Acad. 1870: 72–73, 100 | 1871 |
| Hydroleaceae | |
Hydrolea macrosepala
| A.W. Benn. | J. Linn. Soc., Bot. 11: 277, t. 1, f. 13 | 1871 |
| Hydroleaceae | |
Hydrolea madagascariensis
| Choisy | Mém. Soc. Phys. Genève 6: 111 | 1833 |
| Hydroleaceae | |
Hydrolea megapotamica
| Spreng. | Syst. Veg. [Sprengel] 4 Cur. poster. 114 | 1827 |
| Hydroleaceae | |
Hydrolea minima
| Brand | Notizbl. Bot. Gart. Berlin-Dahlem 10: 120 | 1927 |
| Hydroleaceae | |
Hydrolea mollis
| Chodat | Bull. Herb. Boissier 7(App. 1): 78 | 1899 |
| Hydroleaceae | |
Hydrolea multiflora
| Choisy | Prodr. 10: 180 | 1846 |
| Hydroleaceae | |
Hydrolea nigricaulis
| C. Wright ex Griseb. | Cat. Pl. Cub. 207–208 | 1866 |
| Hydroleaceae | ** |
Hydrolea opercularia
| Willd. ex Brand | Pflanzenr. IV. 251: 183 | 1913 |
| Hydroleaceae | * |
Hydrolea ovata
| Nutt. | Trans. Amer. Philos. Soc., n.s. 5: 196 | 1836 |
| Hydroleaceae | ! |
Hydrolea ovata
| Nutt. ex Choisy | Mém. Soc. Phys. Genève 6(1): 109–110, pl. 1 | 1833 |
| Hydroleaceae | |
Hydrolea ovatifolia
| Raf. | Fl. Tellur. 4: 64 | 1836 |
| Hydroleaceae | |
Hydrolea paludosa
| A.W. Benn. | J. Linn. Soc., Bot. 11: 270–271 | 1871 |
| Hydroleaceae | |
Hydrolea palustris
| (Aubl.) Raeusch. | Nomencl. Bot. (ed. 3) 3: 76 | 1797 |
| Hydroleaceae | |
Hydrolea paniculata
| Raf. | Fl. Tellur. 4: 64 | 1836 |
| Hydroleaceae | |
Hydrolea paraguayensis
| Chodat | Bull. Herb. Boissier 7(App. 1): 78 | 1899 |
| Hydroleaceae | |
Hydrolea prostrata
| Exell | J. Bot. 67(Suppl. 2): 106 | 1929 |
| Hydroleaceae | |
Hydrolea quadrivalvis
| Walter | Fl. Carol. [109–]110 | 1788 |
| Hydroleaceae | |
Hydrolea radicans
| Moc. & Sessé ex Choisy | Mém. Soc. Phys. Genève 6: 112 | 1833 |
| Hydroleaceae | |
Hydrolea rupicola
| Moc. & Sessé ex Choisy | Mém. Soc. Phys. Genève 6: 112 | 1833 |
| Hydroleaceae | |
Hydrolea sansibarica
| Gilg | Pflanzenw. Ost-Afrikas 5: 335 | 1895 |
| Hydroleaceae | |
Hydrolea spinosa
| L. | Sp. Pl. (ed. 2) 1: 328 | 1762 |
| Hydroleaceae | |
Hydrolea tenella
| Moc. & Sessé ex Choisy | Mém. Soc. Phys. Genève 6: 113 | 1833 |
| Hydroleaceae | ** |
Hydrolea tetraginia
| Sessé & Moc. | Pl. Nov. Hisp. 44 | 1888 |
| Hydroleaceae | ** |
Hydrolea tetragyna
| Pav. ex Brand | Pflanzenr. IV. 251(Heft 59): 180 | 1913 |
| Hydroleaceae | ! |
Hydrolea tetragynia
| Sessé & Moc. | Pl. Nov. Hisp. 44 | 1888 |
| Hydroleaceae | |
Hydrolea trigyna
| Sw. | Prodr. 54 | 1788 |
| Hydroleaceae | |
Hydrolea uniflora
| Raf. | Autik. Bot. 34 | 1840 |
| Hydroleaceae | |
Hydrolea urens
| Ruiz & Pav. | Fl. Peruv. 3: 21–22, pl. 243 | 1802 |
| Hydroleaceae | ** |
Hydrolea violacea
| Moc. & Sessé ex Choisy | Mém. Soc. Phys. Genève 6: 114 | 1833 |
| Hydroleaceae | |
Hydrolea zeylanica
| (L.) Vahl | Symb. Bot. 2: 46 | 1791 |