| Nuphar Sm. | |
| Publ. & Syn. | Excluded: Nuphar lutea. |
| Notes | Three taxa reach or border on the Arctic. They have been proposed as races of Nuphar lutea (L.) Sm. but the majority of authors accept species (e.g., Tutin 1993; Wiersema and Hellquist 1997; Uotila 2001b). Nuphar polysepala and N. variegata are allopatric North American vicariants of the widespread but non-arctic Eurasian N. lutea. Nuphar pumila is northern Eurasian and partly sympatric with N. lutea, with much hybridization and partial fertility in the hybrids (Uotila 2001b). |
| Chromosomes | 22 (2x). - Canada. - Hall et al. (1979); Löve and Löve (1980a). |
| Geography | North American (N): CAN. |
| Parent taxon | Nymphaeaceae |
| Child taxa |
Nuphar polysepala Engelm. Nuphar pumila (Timm) DC. Nuphar variegata Durand |
| PAF ID | 1501 |