Nymphaea caerulea, also known as the Egyptian blue lily or sacred blue lily, is a blue water-lily in the genus Nymphaea that grows along the Nile, amongst other locations. It has historically been known as the blue lotus and sacred lotus, particularly in discussing its revered status among the Ancient Egyptians, Nubians, Abyssinians, and any number of historic African civilizations of the ancient world. The leaves are broadly rounded, 25-40 cm across, with a notch at the leaf stem. The flowers are 10-15 cm diameter. The flower buds rise to the surface over a period of two to three days, and when ready, open at approximately 9-9:30am and close about 3pm. The flowers and buds do not rise above the water in the morning, nor do they submerge at night. The flowers have pale bluish-white to sky-blue petals, smoothly changing to a pale yellow in the centre of the flower. Recent studies have shown Nymphaea caerulea to have psychedelic properties, and may have been used as a sacrament in ancient Egypt and certain ancient South American cultures. Dosages of 5 to 10 grams of the flowers induces slight stimulation, a shift in thought processes, enhanced visual perception, and mild closed-eye visuals. Nymphaea caerulea is related to, and possesses similar activity as Nelumbo nucifera, the Sacred Lotus. Both Nymphaea caerulea and Nelumbo nucifera contain the alkaloids nuciferine and apomorphine, which have been recently isolated by independent labs. Used in aromatherapy, Nymphaea caerulea is purported to have a “divine” essence, bringing euphoria, heightened awareness and tranquillity. Other sources cite anti-spasmodic and sedative, purifying and calming properties.