Sepals 4, 2–4 x 0.6–1 cm., oblong-lanceolate, green, sometimes with dark purple dots.
Petals white, or pale whitish lilac or tinged pale blue at the tips.
Delicate aquatic herb with elongate rhizome 1 cm. thick.
Petals 7–14, as long as the sepals, lanceolate, acute.
Flowers blue or pink (rarely white), 3–8 cm. in diam.
Stamens 8–20, connective appendage acute.
Seeds 1 mm. in diam., subglobose, smooth.
Fruit 1–1.5 cm. in diam., globose.
Carpels 6–10; stigma subsessile.
A waterlily.