Nymphaea sulphurea is a species of waterlily native to Angola, Zambia, and the Democratic Republic of the Congo.
Nymphaea sulphurea has stout, cone-shaped rhizomes. The suborbicular to broadly ovate, petiolate, 4.5-5.5 cm long leaves have an entire margin. The petioles are 38âÂÂ46 cm long.
The flowers are 4.5âÂÂ7 cm wide. The lanceolate sepals with acute apex are 2âÂÂ3 cm long, and 1.5âÂÂ1 cm wide. The dark sulphur yellow petals are 2.8âÂÂ2 cm long, and 1.2-0.7 cm wide. The androecium consists of 40-50 stamens with bright yellow anthers. The gynoecium consists of 12-14 carpels.
It was first described by Ernest Friedrich Gilg in 1903.
The type specimen was collected by Hugo Baum in Minnesera on 17 January 1900.
The specific epithet sulphurea, from the Latin sulphureus, means yellow, and refers to the floral colouration.
The IUCN conservation status is Data Deficient (DD).
Nymphaea sulphurea occurs in rivers, lakes, pools, and in deep waters.