Nymphaea violacea, also known as blue lily, is a waterlily in the genus Nymphaea. Nymphaea violacea is found in Australia, particularly in the Western Australian Kimberley region and in northern parts of Queensland and the Northern Territory. The flowers are violet, blue or white. The waterlily is a bush tucker of the Aboriginal people in northern Australia. The tuber, stem, flowers and seeds are all edible. Like other species in the genus, the plant contains the psychoactive alkaloid aporphine, which provide sedative effects when ingested.