Nymphaea nouchali, often known by its synonym Nymphaea stellata, or by common names blue lotus, star lotus, red and blue water lily, blue star water lily is a water lily of genus Nymphaea. It is native to southern and eastern parts of Asia, and is the national flower of Sri Lanka and of Bangladesh. This species is sometimes considered to include the blue Egyptian lotus Nymphaea caerulea. In the past there has been taxonomic confusion with the name Nymphaea nouchali incorrectly applied to Nymphaea pubescens.
Distribution and habitat
This aquatic plant is native in a broad region from Afghanistan, the Indian Subcontinent, to Taiwan, southeast Asia, and Australia. It has been long valued as a garden flower in Thailand and Myanmar to decorate ponds and gardens. In its natural state N. nouchali is found in static or slow-flowing aquatic habitats of little to moderate depth.
Nymphaea nouchali is a day-blooming nonviviparous plant with submerged roots and stems. Part of the leaves are submerged, while others rise slightly above the surface. The leaves are round and green on top; they usually have a darker underside. The floating leaves have undulating edges that give them a crenellate appearance. Their size is about 20–23 cm and their spread is 0.9 to 1.8 m
This water lily has a beautiful flower which is usually violet blue in color with reddish edges. Some varieties have white, purple, mauve or fuchsia-colored flowers, hence its name red and blue water lily. The flower has 4-5 sepals and 13-15 petals that have an angular appearance making the flower look star-shaped from above. The cup-like calyx has a diameter of 11–14 cm.
In Sri Lanka this plant usually grows in buffalo ponds and natural wetlands. Its beautiful aquatic flower has been mentioned in Sanskrit, Pali and Sinhala literary works since ancient times under the names kuvalaya, indhīwara, niluppala, nilothpala and nilupul as a symbol of virtue, discipline and purity. Buddhist lore in Sri Lanka claims that this flower was one of the 108 auspicious signs found on Prince Siddhartha's footprint. It is said that when Buddha died, lotus flowers blossomed everywhere he had walked in his lifetime.
N. nouchali is used as an ornamental plant because of its spectacular flowers. It is also popular as an aquarium plant under the name "Dwarf Lily" or "Dwarf Red Lily". Sometimes it is grown for its flowers, while other aquarists prefer to trim the lily pads, and just have the underwater foliage.
Like all waterlilies or lotuses, its tubers and rhizomes can be used as food items; they are eaten usually boiled or roasted. In the case of N. nouchali, its tender leaves and flower peduncles are also valued as food.
- Nymphaea caerulea, the Egyptian blue lotus or sacred lotus
- Nymphaea lotus, the white lotus or Egyptian white water-lily
- List of freshwater aquarium plant species
- USDA GRIN Taxonomy, retrieved April 20, 2015
- The Plant List: A Working List of All Plant Species, retrieved 20 April 2015
- Dezhi Fu, John H. Wiersema, and Donald Padgett, Flora of China online 6, retrieved 20 April 2015
- Constitution Of The People's Republic Of Bangladesh
- Hettiarachchi, Kumudini (November 7, 2010). "The Great Pretender". The Sunday Times, Sri Lanka. Retrieved 24 June 2013.
- TokyoNet - National Statistics
- P. V. Sharma, Puṣpāyurvedaḥ - Pradhāna vitaraka Caukhambhā Bhāratī Akādamī, 1998
- FR Irvine, RS Trickett - Waterlilies as Food - Kew Bulletin, 1953
- A Banerjee, S Matai - Composition of Indian aquatic plants in relation to utilization as animal forage - Journal of Aquatic plant management, 1990
- Neel kamal (blue waterlily) in Indian culture on Biodiversity of India portal.
- Taxon: Nymphaea stellata Willd. - Synonym of Nymphaea nouchali Burm. f.
- Perry D. Slocum: Waterlilies and Lotuses. Timber Press 2005, ISBN 0-88192-684-1 (restricted online version at Google Books)
- Ambal (Nymphaea stellata) - Flowers of India - Kerala Ayurvedics
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