| Ranunculaceae | |
Ranunculus aquatilis var. aquatilis
| | | |
| Ranunculaceae | |
Ranunculus aquatilis var. arcticus
| Durand | Pl. Kaneanae Groenl. 185 | 1856 |
| Ranunculaceae | |
Ranunculus aquatilis var. calvescens
| (W.B. Drew) L.D. Benson | Bull. Torrey Bot. Club 69(5): 384 | 1942 |
| Ranunculaceae | |
Ranunculus aquatilis var. capillaceus
| (Thuill.) DC. | Prodr. 1: 26 | 1824 |
| Ranunculaceae | |
Ranunculus aquatilis var. diffusus
| With. | Arr. Brit. Pl. (ed. 3) 2: 507 | 1796 |
| Ranunculaceae | |
Ranunculus aquatilis var. eradicatus
| Laest. | Nova Acta Regiae Soc. Sci. Upsal., ser. 2 11: 242–243 | 1839 |
| Ranunculaceae | |
Ranunculus aquatilis var. harrisii
| L.D. Benson | Amer. Midl. Naturalist 40(1): 236–237 | 1948 |
| Ranunculaceae | |
Ranunculus aquatilis var. heterophyllus
| Van Heurck & De Beucker | Antwerp. Anal.-Fl. 1: 5 | 1861 |
| Ranunculaceae | |
Ranunculus aquatilis var. hispidulus
| Drew | Bull. Torrey Bot. Club 16(6): 150 | 1889 |
| Ranunculaceae | |
Ranunculus aquatilis var. longirostris
| (Godr.) P. Lawson | Proc. & Trans. Roy. Soc. Canada 2(4): 45 | 1884 |
| Ranunculaceae | |
Ranunculus aquatilis var. porteri
| (Britton) L.D. Benson | Amer. Midl. Naturalist 40(1): 236 | 1948 |
| Ranunculaceae | |
Ranunculus aquatilis var. pseudofluitans
| Syme | Engl. Bot. ed. 3, 1: 20 | 1863 |
| Ranunculaceae | |
Ranunculus aquatilis subsp. saniculifolius
| (Viv.) O. Bolòs & Vigo | Butl. Inst. Catalana Hist. Nat., Secc. Bot. 38(1): 65 | 1974 |
| Ranunculaceae | |
Ranunculus aquatilis var. sphaerospermus
| Boiss. | Fl. Orient. [Boiss.] 1: 23 | 1867 |
| Ranunculaceae | |
Ranunculus aquatilis var. subrigidus
| (W.B. Drew) Breitung | Amer. Midl. Naturalist 58(1): 32 | 1957 |
| Ranunculaceae | |
Ranunculus aquatilis subsp. trichophyllus
| (Chaix ex Vill.) Moore & Moore | Cybcle. Hibernica 5 | 1866 |
| Ranunculaceae | |
Ranunculus aquatilis var. trichophyllus
| (Chaix ex Vill.) A. Gray | Manual (ed. 5) 40 | 1867 |
| Ranunculaceae | |
Ranunculus aquatilis var. trichophyllus
| Van Heurck & De Beucker | Antwerp. Anal.-Fl. 1: 5 | 1861 |