| Nymphaeaceae | * |
Nuphar advena
| R. Br. | | |
| Nymphaeaceae | ! |
Nuphar advena
| (Aiton) W.T. Aiton | Hortus Kew. (ed. 2) 3: 295 | 1811 |
| Nymphaeaceae | |
Nuphar affinis
| Harz | Bot. Centralbl. 53: 227 | 1893 |
| Nymphaeaceae | * |
Nuphar americana
| Prov. | Fl. Canad. [Provanchier] 28 | 1862 |
| Nymphaeaceae | |
Nuphar bombycina
| (G.S. Mill. & Standl.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 8(5): 311 | 1931 |
| Nymphaeaceae | |
Nuphar bornetii
| H. Lév. & Vaniot | Bull. Soc. Bot. France 51: Sess. Extraord. 143 [cxliii] | 1904 |
| Nymphaeaceae | |
Nuphar centricavata
| J. Schust. | Allg. Bot. Z. Syst. 11: 145 | 1905 |
| Nymphaeaceae | |
Nuphar chartacea
| (G.S. Mill. & Standl.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 8(5): 310 | 1931 |
| Nymphaeaceae | |
Nuphar confusa
| Gand. | Fl. Gallic. Excurs. 187 | 1879 |
| Nymphaeaceae | |
Nuphar fluviatilis
| (R.M. Harper) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 8(5): 311 | 1931 |
| Nymphaeaceae | |
Nuphar fraterna
| (G.S. Mill. & Standl.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 8(5): 310 | 1931 |
| Nymphaeaceae | |
Nuphar × hybrida
| (Peck) Bergmans | Vaste Pl. Rotsheesters, ed. 2 548 | 1939 |
| Nymphaeaceae | |
Nuphar × interfluitans
| Fernald | Rhodora 44(526): 397–398, pl. 719 | 1942 |
| Nymphaeaceae | |
Nuphar × intermedia
| Ledeb. | Fl. Altaic. 2: 274 | 1830 |
| Nymphaeaceae | |
Nuphar japonica
| DC. | Syst. Nat. 2: 62 | 1821 |
| Nymphaeaceae | |
Nuphar jurana
| Magnin | Ann. Soc. Bot. Lyon 19 | 1894 |
| Nymphaeaceae | |
Nuphar kalmiana
| (Michx.) W.T. Aiton | Hortus Kew. (ed. 2) 3: 295 | 1811 |
| Nymphaeaceae | |
Nuphar longifolia
| (Michx.) Sm. | Cycl. Nuphar no. 5 | 1819 |
| Nymphaeaceae | |
Nuphar ludoviciana
| (G.S. Mill. & Standl.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 8(5): 310 | 1931 |
| Nymphaeaceae | ! |
Nuphar lutea
| (L.) Sm. | Fl. Graec. Prod. 1: 361 | 1809 |
| Nymphaeaceae | * |
Nuphar luteum
| Sibth. & Sm. | Fl. Graec. Prod. 361 | 1808 |
| Nymphaeaceae | ** |
Nuphar luteum
| (L.) Sm. | Fl. Graec. Prod. 1: 361 | 1808 |
| Nymphaeaceae | |
Nuphar microcarpa
| (G.S. Mill. & Standl.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 8(5): 311 | 1931 |
| Nymphaeaceae | |
Nuphar microphylla
| (Pers.) Fernald | Rhodora 19(222): 111 | 1917 |
| Nymphaeaceae | |
Nuphar minima
| (Willd.) Sm. | Engl. Bot. 32: , pl. 2292 | 1811 |
| Nymphaeaceae | |
Nuphar minor
| Dumort. | Fl. Belg. 131 | 1827 |
| Nymphaeaceae | |
Nuphar oguraensis
| Miki | Bot. Mag. (Tokyo) 48: 334–335 | 1934 |
| Nymphaeaceae | |
Nuphar orbiculata
| (Small) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 8(5): 311 | 1931 |
| Nymphaeaceae | |
Nuphar ovata
| (G.S. Mill. & Standl.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 8(5): 311 | 1931 |
| Nymphaeaceae | |
Nuphar ozarkana
| (G.S. Mill. & Standl.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 8(5): 310 | 1931 |
| Nymphaeaceae | |
Nuphar ozeensis
| Miki | Stud. Hist. & Nat. Monuments in Kyotohu 18: | 1937 |
| Nymphaeaceae | * |
Nuphar pailum
| Sm. | Engl. Bot. 3: 16 | 1825 |
| Nymphaeaceae | |
Nuphar polysepala
| Engelm. | Trans. Acad. Sci. St. Louis 2: 282 | 1865 |
| Nymphaeaceae | |
Nuphar puberula
| (G.S. Mill. & Standl.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 8(5): 311 | 1931 |
| Nymphaeaceae | |
Nuphar pumila
| (Timm) DC. | Syst. Nat. 2: 61 | 1821 |
| Nymphaeaceae | |
Nuphar puteorum
| Fernald | Rhodora 52: 65, pl. 1159, f. 1–6 | 1950 |
| Nymphaeaceae | |
Nuphar rivularis
| Dumort. | Bull. Soc. Roy. Bot. Belgique 3: 5 | 1864 |
| Nymphaeaceae | |
Nuphar × rubrodisca
| Morong | Bot. Gaz. 11: 167 | 1886 |
| Nymphaeaceae | |
Nuphar rubrodisca
| Morong | Bot. Gaz. 11(7): 167–168 | 1886 |
| Nymphaeaceae | |
Nuphar sagittifolia
| (Walter) Pursh | Fl. Amer. Sept. 2: 370 | 1814 [1813] |
| Nymphaeaceae | |
Nuphar × saijoensis
| (Shimoda) Padgett & Shimoda | Aquatic Bot. 72: 171 | 2003 |
| Nymphaeaceae | |
Nuphar schlierensis
| Harz | Fl. Exsicc. Bavar., Bryoph. , No. 404 | 1901 |
| Nymphaeaceae | |
Nuphar sericea
| Láng | Syll. Pl. Nov. 1: 180 | 1824 |
| Nymphaeaceae | |
Nuphar shimadae
| Hayata | Icon. Pl. Formosan. 6: 2–3, pl. 1 | 1916 |
| Nymphaeaceae | |
Nuphar sinensis
| Hand.-Mazz. | Kaiserl. Akad. Wiss. Wien, Math.-Naturwiss. Kl., Anz. 63: 8 | 1926 |
| Nymphaeaceae | |
Nuphar spathulifera
| Rchb. | Iconogr. Bot. Pl. Crit. 2: 10 | 1824 |
| Nymphaeaceae | |
Nuphar × spenneriana
| Gaudin | Fl. Helv. 3: 439 | 1828 |
| Nymphaeaceae | |
Nuphar subintegerrima
| (Casp.) Makino | Bot. Mag. (Tokyo) 24: 141 | 1910 |
| Nymphaeaceae | |
Nuphar subpumila
| Miki | Stud. Hist. & Nat. Monuments in Kyotohu 18: | 1937 |
| Nymphaeaceae | |
Nuphar systyla
| Wallr. | Erst. Beitr. Fl. Hercyn. 212 | 1840 |
| Nymphaeaceae | |
Nuphar tenella
| Rchb. | Iconogr. Bot. Pl. Crit. 2: 10 | 1824 |
| Nymphaeaceae | |
Nuphar ulvacea
| (G.S. Mill. & Standl.) Standl. | Publ. Field Mus. Nat. Hist., Bot. Ser. 8(5): 311 | 1931 |
| Nymphaeaceae | |
Nuphar variegata
| Durand | Annual Rep. New York State Mus. Nat. Hist. 19: 73 | 1866 |
| Nymphaeaceae | * |
Nuphar variegatum
| Engelm. | Annual Rep. State Bot. 19: (App.) 73 | 1866 |