| Alismataceae | !! |
Alismataceae | Vent. | Tabl. Regn. Veg. 2: 157 | 1799 |
| Cymodoceaceae | !! |
Cymodoceaceae | Vines | Stud. Text-book Bot. 553 | 1895 |
| Alismataceae | ! |
Echinodorus | Rich. | Mém. Mus. Hist. Nat. 1: 365 | 1815 |
| Alismataceae | |
Echinodorus andrieuxii | (Hook. & Arn.) Small | N. Amer. Fl. 17(1): 46 | 1909 |
| Alismataceae | |
Echinodorus berteroi | (Spreng.) Fassett | Rhodora 57(677): 139 | 1955 |
| Alismataceae | |
Echinodorus bracteatus | Micheli | Monogr. Phan. 3: 59 | 1881 |
| Alismataceae | |
Echinodorus bracteatus var. bracteatus | | | |
| Alismataceae | |
Echinodorus grandiflorus | (Cham. & Schltdl.) Micheli | Monogr. Phan. 3: 57 | 1881 |
| Alismataceae | |
Echinodorus grandiflorus var. grandiflorus | | | |
| Alismataceae | |
Echinodorus grisebachii | Small | N. Amer. Fl. 17(1): 46 | 1909 |
| Alismataceae | |
Echinodorus nymphaeifolius | (Griseb.) Buchenau | Bot. Jahrb. Syst. 2: 483 | 1882 |
| Alismataceae | |
Echinodorus ovalis | C. Wright | Anales Acad. Ci. Med. Habana 7: 564 | 1871 |
| Alismataceae | |
Echinodorus paniculatus | Micheli | Monogr. Phan. 3: 51 | 1881 |
| Alismataceae | |
Echinodorus quadricostatus | Fassett | Rhodora 57(679): 204, f. 72 | 1955 |
| Alismataceae | |
Echinodorus quadricostatus var. quadricostatus | | | |
| Alismataceae | |
Echinodorus scaber | Rataj | Folia Geobot. Phytotax. 4: 438 | 1969 |
| Alismataceae | |
Echinodorus scaber var. scaber | | | |
| Alismataceae | |
Echinodorus subalatus | (Mart.) Griseb. | Cat. Pl. Cub. 218 | 1866 |
| Alismataceae | |
Echinodorus tenellus | (Mart. ex Schult. & Schult. f.) Buchenau | Index Crit. Butom. Alism. Juncag. 21 | 1868 |
| Alismataceae | |
Echinodorus trialatus | Fassett | Rhodora 57(678): 179, f. 21, 50, 62 | 1955 |
| Alismataceae | |
Echinodorus tunicatus | Small | N. Amer. Fl. 17(1): 48 | 1909 |
| Hydrocharitaceae | ! |
Egeria | Planch. | Ann. Sci. Nat., Bot., sér. 3, 11: 79 | 1849 |
| Hydrocharitaceae | ! |
Egeria densa | Planch. | Ann. Sci. Nat., Bot., sér. 3, 11: 80 | 1849 |
| Pontederiaceae | |
Eichhornia | Kunth | Enum. Pl. 4: 129–132 | 1843 |
| Pontederiaceae | |
Eichhornia azurea | (Sw.) Kunth | Enum. Pl. 4: 129 | 1843 |
| Pontederiaceae | |
Eichhornia crassipes | (Mart.) Solms | Monogr. Phan. 4: 527 | 1883 |
| Pontederiaceae | |
Eichhornia diversifolia | (Vahl) Urb. | Symb. Antill. 4: 147 | 1903 |
| Pontederiaceae | |
Eichhornia heterosperma | Alexander | Lloydia 2: 170 | 1939 |
| Pontederiaceae | |
Eichhornia paniculata | (Spreng.) Solms | Monogr. Phan. 4: 530 | 1883 |
| Pontederiaceae | |
Eichhornia paradoxa | (Schult. f. ex Mart.) Solms | Monogr. Phan. 4: 531 | 1883 |
| Cymodoceaceae | ! |
Halodule | Endl. | Gen. Pl. 1368–1369 | 1841 |
| Cymodoceaceae | |
Halodule beaudettei | (Hartog) Hartog | Blumea 12: 303 | 1964 |
| Cymodoceaceae | |
Halodule ciliata | (Hartog) Hartog | Blumea 12: 309 | 1964 |
| Cymodoceaceae | |
Halodule wrightii | Asch. | Sitzungsber. Ges. Naturf. Freunde Berlin 1868: 19 | 1868 |
| Hydrocharitaceae | ! |
Halophila | Thouars | Gen. Nov. Madagasc. 2: 2 | 1806 |
| Hydrocharitaceae | |
Halophila baillonis | Asch. | J. Linn. Soc., Bot. 14(77): 317 | 1874 |
| Hydrocharitaceae | ! |
Halophila decipiens | Ostenf. | Bot. Tidsskr. 24(3): 260–261, f. s.n. [p. 261] | 1902 |
| Hydrocharitaceae | |
Halophila engelmannii | Asch. | Anl. Wiss. Beobacht. Reisen 368 | 1875 |
| Haloragaceae | !! |
Haloragaceae | R. Br. | Voy. Terra Austral. 2: 549 | 1814 |
| Pontederiaceae | ! |
Heteranthera | Ruiz & Pav. | Fl. Peruv. Prodr. 9 | 1794 |
| Pontederiaceae | ! |
Heteranthera limosa | (Sw.) Willd. | Ges. Naturf. Freunde Berlin Neue Schriften 3: 439 | 1801 |
| Pontederiaceae | |
Heteranthera oblongifolia | C. Mart. ex Roem. & Schult. | Syst. Veg. (ed. 15 bis) 7(2): 1148 | 1830 |
| Pontederiaceae | |
Heteranthera peduncularis | Benth. | Pl. Hartw. 25 | 1840 |
| Pontederiaceae | ! |
Heteranthera reniformis | Ruiz & Pav. | Fl. Peruv. 1: 43, pl. 71, f. a | 1798 |
| Pontederiaceae | |
Heteranthera seubertiana | Solms | Monogr. Phan. 4: 518 | 1882 |
| Pontederiaceae | |
Heteranthera spicata | C. Presl | Symb. Bot. 1: 18, t. 10 | 1830 |
| Hydrocharitaceae | ! |
Hydrilla | Rich. | Mém. Cl. Sci. Math. Inst. Natl. France 1811(2): 9, 61, 76 | 1814 |
| Hydrocharitaceae | ! |
Hydrilla verticillata | (L. f.) Royle | Ill. Bot. Himal. Mts. 1: , pl. 376 | 1839 |
| Hydrocharitaceae | !! |
Hydrocharitaceae | Juss. | Gen. Pl. 67 | 1789 |
| Alismataceae | ! |
Hydrocleys | Rich. | Mém. Mus. Hist. Nat. 1: 368 | 1815 |
| Alismataceae | ! |
Hydrocleys nymphoides | (Willd.) Buchenau | Index Crit. Butom. Alism. Juncag. 9 | 1868 |
| Alismataceae | |
Hydrocleys parviflora | Seub. | Fl. Bras. 3(1): 117 | 1847 |
| Hydrocharitaceae | |
Hydromystria | G. Mey. | Prim. Fl. Esseq. 152 | 1818 |
| Hydrocharitaceae | ! |
Hydromystria laevigata | (Humb. & Bonpl. ex Willd.) Hunz. | Lorentzia 4: 5 | 1981 |
| Alismataceae | ! |
Limnocharis | Bonpl. | Pl. Aequinoct. 1: 116 | 1808 [1807] |
| Alismataceae | |
Limnocharis flava | (L.) Buchenau | Index Crit. Butom. Alism. Juncag. 13 | 1868 |
| Alismataceae | |
Limnocharis laforestii | Griseb. | Bonplandia (Hannover) 6(1): 11 | 1858 |
| Limnocharitaceae | |
Limnocharitaceae | Takht. ex Cronquist | Integr. System Classific. 1048 | 1981 |
| Menyanthaceae | !! |
Menyanthaceae | Dumort. | Anal. Fam. Pl. 20, 25 | 1829 |
| Haloragaceae | |
Myriophyllum | L. | Sp. Pl. 2: 992 | 1753 |
| Haloragaceae | |
Myriophyllum aquaticum | (Vell.) Verdc. | Kew Bull. 28(1): 36 | 1973 |
| Haloragaceae | |
Myriophyllum heterophyllum | Michx. | Fl. Bor.-Amer. 2: 191 | 1803 |
| Najadaceae | !! |
Najadaceae | Juss. | Gen. Pl. 18 | 1789 |
| Hydrocharitaceae | ! |
Najas | L. | Sp. Pl. 2: 1015 | 1753 |
| Hydrocharitaceae | |
Najas arguta | Kunth | Nov. Gen. Sp. (quarto ed.) 1: 371 | 1815 [1816] |
| Hydrocharitaceae | ! |
Najas guadalupensis | (Spreng.) Magnus | Beitr. Kenntn. Najas viii | 1870 |
| Hydrocharitaceae | |
Najas guadalupensis var. guadalupensis | | | |
| Hydrocharitaceae | ! |
Najas marina | L. | Sp. Pl. 2: 1015 | 1753 |
| Hydrocharitaceae | ! |
Najas wrightiana | A. Braun | Sitzungsber. Ges. Naturf. Freunde Berlin 1868: 17 | 1868 |
| Menyanthaceae | ! |
Nymphoides | Ség. | Pl. Veron. 3: 121 | 1754 |
| Menyanthaceae | |
Nymphoides fallax | Ornduff | Brittonia 21(4): 348–349, f. 2b–g | 1969 [1970] |
| Menyanthaceae | ! |
Nymphoides indica | (L.) Kuntze | Revis. Gen. Pl. 2: 429 | 1891 |
| Pontederiaceae | ! |
Pontederia | L. | Sp. Pl. 1: 288 | 1753 |
| Pontederiaceae | |
Pontederia cordata | L. | Sp. Pl. 1: 288 | 1753 |
| Pontederiaceae | |
Pontederia cordata var. cordata | | | |
| Pontederiaceae | |
Pontederia parviflora | Alexander | N. Amer. Fl. 19: 59 | 1937 |
| Pontederiaceae | ! |
Pontederia rotundifolia | L. f. | Suppl. Pl. 192 | 1781 [1782] |
| Pontederiaceae | ! |
Pontederia sagittata | C. Presl | Reliq. Haenk. 1(2): 116 | 1827 |
| Pontederiaceae | !! |
Pontederiaceae | Kunth | Nov. Gen. Sp. (quarto ed.) 1: 265 | 1815 [1816] |
| Potamogetonaceae | ! |
Potamogeton | L. | Sp. Pl. 1: 126 | 1753 |
| Potamogetonaceae | ! |
Potamogeton crispus | L. | Sp. Pl. 1: 126 | 1753 |
| Potamogetonaceae | |
Potamogeton foliosus | Raf. | Med. Repos., hexade 2, 5: 354 | 1808 |
| Potamogetonaceae | |
Potamogeton foliosus var. foliosus | | | |
| Potamogetonaceae | |
Potamogeton illinoensis | Morong | Bot. Gaz. 5(5): 50 | 1880 |
| Potamogetonaceae | ! |
Potamogeton nodosus | Poir. | Encycl., Suppl. 4(2): 535 | 1816 |
| Potamogetonaceae | |
Potamogeton pectinatus | L. | Sp. Pl. 1: 127 | 1753 |
| Potamogetonaceae | ! |
Potamogeton perfoliatus | L. | Sp. Pl. 1: 126 | 1753 |
| Potamogetonaceae | ! |
Potamogeton pusillus | L. | Sp. Pl. 1: 127 | 1753 |
| Potamogetonaceae | |
Potamogeton pusillus var. pusillus | | | |
| Potamogetonaceae | !! |
Potamogetonaceae | Bercht. & J. Presl | Přir. Rostlin 1(7): [1], 3 | 1823 |
| Haloragaceae | |
Proserpinaca | L. | Sp. Pl. 1: 88 | 1753 |
| Haloragaceae | |
Proserpinaca palustris | L. | Sp. Pl. 1: 88 | 1753 |
| Haloragaceae | |
Proserpinaca pectinata | Lam. | Tabl. Encycl. 1: 214–215, pl. 50, f. 1 | 1791 [1792] |
| Ruppiaceae | ! |
Ruppia | L. | Sp. Pl. 1: 127 | 1753 |
| Ruppiaceae | |
Ruppia didyma | Sw. ex Wikstr. | Kongl. Vetensk. Acad. Handl. 1825: 427 | 1825 |
| Ruppiaceae | ! |
Ruppia maritima | L. | Sp. Pl. 1: 127–128 | 1753 |
| Alismataceae | ! |
Sagittaria | L. | Sp. Pl. 2: 993 | 1753 |
| Alismataceae | ! |
Sagittaria guayanensis | Kunth | Nov. Gen. Sp. (quarto ed.) 1: 250 | 1815 [1816] |
| Alismataceae | ! |
Sagittaria guayanensis subsp. guayanensis | | | |
| Alismataceae | |
Sagittaria intermedia | Micheli | Monogr. Phan. 3: 80 | 1881 |