Overview

Brief Summary

Nymphaea nouchali, known as red and blue water-lily, blue star water-lily, or star lotus, is an aquatic flowering plant in the Nymphaceae (water-lily family), native to southern and eastern Asia (including the Indian subcontinent, China, and Taiwan), Borneo, the Philippines, Sri Lanka, and Australia, where it typically grows in ponds. It is often called the “blue lotus of India,” but it is not a true lotus (of the lotus family, Nelumbaceae; the genus Lotus is in the legume family, Fabaceae), nor are water-lilies true lilies (of the family Liliaceae).

N. nouchali grows from rhizomes or tubers rooted under the water. Leaves are oval to round, 13–15 cm (5–6 in), with an open sinus at the leaf base where it attaches to the petiole (leaf stem). Leaves may spread 1.4–1.5 m (4–5 feet) from where the rhizome is rooted. Flowers, which have little fragrance, are stellate (star-shaped) with 4 sepals and 10–16 petals, and are 5–13 cm (2–5 in) in diameter. Although leaves float on the water surface, flowers are generally held 30 cm (12 in) above water. They are usually pale blue (but can be pink or white) with pale yellow stamens and anthers.

N. nouchali has been cultivated in southeast Asia for centuries, especially around temples. It is also cultivated in Sri Lanka and gathered from dried ponds in India for the rhizomes, which are used as food and animal fodder as a source of starch. In Ayurvedic medicine, it is used to treat indigestion.

Cultivars include N. nouchali var. cyanea, which has medium-sized pale to deep blue flowers, and N. nouchali var. versicolor, which is commonly exported in the form of tubers from Sri Lanka to Europe and the U.S. for use in the aquariums; the tubers grow quickly after exposure to warm water, making an “instant” aquarium plant.

(Everett 1981, FOC 2011, Slocum 2005, Wikipedia 2011)

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Distribution

Localities documented in Tropicos sources

Nymphaea nouchali Burm. f.:
China (Asia)
Vietnam (Asia)
Thailand (Asia)
Sri Lanka (Asia)
Philippines (Asia)
Bangladesh (Asia)
Afghanistan (Asia)
Pakistan (Asia)
India (Asia)
Nepal (Asia)
Burma (Asia)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Localities documented in Tropicos sources

Nymphaea madagascariensis DC.:
Madagascar (Africa & Madagascar)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
  • Rutenberg, C. 1880-1889. Reliquiae Rutenbergianae. Abh. Naturwiss. Vereine Bremen 7(1): 1–54; 7(2): 198–214; 7(3): 335–365; 9(4): 401–403; 10(3): 369–396.   http://www.tropicos.org/Reference/7755 External link.
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Localities documented in Tropicos sources

Nymphaea bernierana Planch.:
Madagascar (Africa & Madagascar)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Localities documented in Tropicos sources

Nymphaea stellata Willd.:
Madagascar (Africa & Madagascar)
Borneo (Asia)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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Range Description

It is native to temperate and tropical Asia (Afghanistan to China, and south to Papua New Guinea), Australia and tropical Africa.
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Physical Description

Morphology

Description

Rhizomes erect, unbranched. Leaf blade elliptic-orbicular to orbicular, 7--15(--45) cm in diam., papery, abaxially glabrous, peltate a few mm from base of sinus, base cordate, basal lobes parallel to spreading, margin subentire to deeply crenate. Flower slightly emergent, 3--15 cm in diam. Calyx insertion on receptacle circular; sepals lanceolate to oblong-lanceolate, 2.5--8 cm, slightly veined, persistent. Petals 10--30, white tinged with purple, blue, or purple-red, linear-oblong to lanceolate, 4.5--5 cm, transition to stamens gradual. Filament of inner stamens ± as wide as anther; connective apically appendaged. Carpels only partially united, walls between locules of ovary double. Stigma rays (8--)10--30; carpellary appendages triangular-tapered. Fruit globose, 1.5--4.5 cm in diam. Seeds ellipsoid-globose, 0.5--1.3 mm, with longitudinal rows of hairs. Fl. Jul--Dec. 2n = 28, 56, 84.
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Diagnostic Description

Synonym

Nymphaea stellata Willdenow.
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Ecology

Habitat

Habitat & Distribution

Ponds. Anhui, Guangdong, Hainan, Hubei, Taiwan, Yunnan [Afghanistan, Bangladesh, India, Indonesia, Myanmar, Nepal, New Guinea, Pakistan, Philippines, Sri Lanka, Thailand, Vietnam; Australia].
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Habitat and Ecology

Habitat and Ecology
Commonly found growing in stagnant water pools or ponds. It is a rooted aquatic herb.

Systems
  • Freshwater
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Nymphaea stellata

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 3
Species With Barcodes: 1
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2011

Assessor/s
Gupta, A.K.

Reviewer/s
Bhat, G.K., Augustine, J., Rao, M.L.V., Dahanukar, N. & Molur, S.

Contributor/s

Justification
Widespread species with no known major widespread threats.
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Population

Population
This is a common species. Population trends are unknown.

Population Trend
Unknown
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Threats

Major Threats
No major threats to the species are known.
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Management

Conservation Actions

Conservation Actions
None known.
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Wikipedia

Nymphaea nouchali

Nymphaea nouchali, commonly known as the Red and blue water lily, Blue star water lily, Star lotus, Pygmy Water-lily, or by its synonym Nymphaea stellata, is a water lily of genus Nymphaea. The Blue waterlily is the national flower of Sri Lanka. White-flowered waterlilies (of several species) are the national flower of Bangladesh[1] and the state flower for Andhra Pradesh, India.[citation needed]

Contents

Distribution and habitat [edit]

Nymphea nouchali'; in Sanya city, Hainan island

This aquatic plant is native from the Indian Subcontinent to Australia[2] region. It has been long valued as a garden flower in Thailand and Myanmar to decorate ponds and gardens.

In its natural state the Red and blue water-lily is found in static or slow-flowing aquatic habitats of little to moderate depth.

Description [edit]

Nymphaea nouchali; pale-colored variety in Cambodia.

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. 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.

Symbolism [edit]

Sigiriya frescoes, Anuradhapura period, Central Ceylon. The lady on the left is holding a Nil Mānel.

Nymphaea nouchali is the National flower of Sri Lanka (where it is known as Nil Mānel or "Nil Mahanel").[3][4] Since "Nil" means ‘blue’ in Sinhala, the Sinhalese name of this plant is often rendered as "blue lotus" in English.

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.[5] It is said that when Buddha died, lotus flowers blossomed everywhere he had walked in his lifetime.

The star lotus might have been one of the plants eaten by the Lotophagi of Homer's Odyssey.

Uses [edit]

Fuchsia-colored Nymphaea nouchali in Hyderabad, Andhra Pradesh.

The Red and blue water-lily 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".[6] Sometimes it is grown for its flowers, while other aquarists prefer to trim the lily pads, and just have the underwater foliage.

Nymphaea nouchali is considered a medicinal plant in Indian Ayurvedic medicine under the name Ambal; it was mainly used to treat indigestion.[7] Recent experiments have confirmed that it has medicinal qualities as an antihepatotoxic and antidiabetic.[8][9] 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 the Red and blue water-lily, its tender leaves and flower peduncles are also valued as food.[10]

The dried plant is collected from ponds, tanks and marshes during the dry season and used in India as animal forage.[11]

See also [edit]

References [edit]

  1. ^ A Hossain, G Kabir, M M Ud-deen, and A M S Alam (2007). "Cytological studies of Nymphaea species available in Bangladesh". Journal of Bio-Science 15: 7–13. 
  2. ^ http://bie.ala.org.au/species/Nymphaea+nouchali
  3. ^ "Sri Lanka National Flower". Government of Sri Lanka Official Web Portal. Government of Sri Lanka. Retrieved 4 March 2011. 
  4. ^ Zeylanica (Nymphaea stellata)
  5. ^ TokyoNet - National Statistics
  6. ^ Dwarf Aquarium Lily (Nymphaea stellata)
  7. ^ P. V. Sharma, Puṣpāyurvedaḥ - Pradhāna vitaraka Caukhambhā Bhāratī Akādamī, 1998
  8. ^ MR Bhandarkar, A Khan - Antihepatotoxic effect of Nymphaea stellata willd., against carbon tetrachloride-induced hepatic damage in albino rats - Journal of ethnopharmacology, 2004
  9. ^ K Rajagopal, K Sasikala -Antidiabetic activity of hydro-ethanolic extracts of Nymphaea Stellata flowers- African Journal of Pharmacy and Pharmacology, 2008
  10. ^ FR Irvine, RS Trickett - Waterlilies as Food - Kew Bulletin, 1953
  11. ^ A Banerjee, S Matai - Composition of Indian aquatic plants in relation to utilization as animal forage - Journal of Aquatic plant management, 1990

Nymphaea Nouchali also known "Shapla" a national flower and icon of Bangladesh. The national flower of Bangladesh is Shapla (Water Lily). Shapla is a flower floating at ease in almost every water bodies of Bangladesh. Beels haors, brooks, ponds etc. are abodes of this flower. There are two types of Shapla differing in color. One is white and the other is pink. Other than adding to the beauty of Bangladesh, Shapla is a delicious item of food for Bangladeshis. Rural people consume it as curry. Children are also fond of eating the stem and the fruit even green. Bangladeshis adore this flower which is expressed better by making a dummy of Shapla called Shapla Chattar at Motijheel in Dhaka. Leton, Houston, TX

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Notes

Comments

In FRPS and a number of other works this species is named Nymphaea stellata . An examination of the type of N. nouchali by Verdcourt (Kew Bull. 44: 179. 1989) indicated that the name should be applied to this species, not to N. pubescens as some have done. Much work remains to be done to improve our understanding of this wide-ranging and highly variable taxon and its relationship to related taxa in Africa.
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