Nymphaea L.
Rhizomatous. Lvs floating or emergent, entire, deeply cordate, stipulate, reddish beneath, with anastomosing lateral veins. Sepals 4-(5), green beneath. Petals white or yellow, rarely red, pink or blue; outer petals > sepals. Ovary semi-inferior. Seeds arillate.
Key
50 spp., tropical and temperate. Naturalised spp. 2.
