Star water lily

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Star water lily
Star water lily (Nymphaea nouchali), a blue-flowered form

Star water lily ( Nymphaea nouchali ), a blue-flowered form

Systematics
Class : Bedecktsamer (Magnoliopsida)
Order : Water lilies (Nymphaeales)
Family : Water lily family (Nymphaeaceae)
Subfamily : Nymphaeoideae
Genre : Water lilies ( nymphaea )
Type : Star water lily
Scientific name
Nymphaea nouchali
Burm. f.

The star water lily ( Nymphaea nouchali ) is a species of the water lily family (Nymphaeaceae). This aquatic plant is widespread in still waters in Asia and Australasia .

description

Illustration from Flore des serres et des jardins de l'Europe , 8, 1852–53 - under the name Nymphaea stellata .
A shape with a whitish flower
A shape with a pink flower
Floating leaves and long-stalked flowers that are never pure white

Appearance and leaf

The star water lily is a perennial herbaceous plant . This aquatic plant forms upright, unbranched rhizomes as survival organs .

The leaves are divided into a petiole and a leaf blade. The simple, herbaceous leaf blade is usually 7 to 15 in diameter, rarely up to 45 cm elliptical-circular to circular, a few millimeters away from the heart-shaped blade base (peltat). The basal leaf lobes are parallel to spread out. The leaf margins are almost smooth to deeply notched. The underside of the leaf is bare.

Flower, fruit and seeds

The flowering period in China extends from July to December. The flowers stand on a long peduncle, roughly above the water surface. The hermaphroditic flowers are 3 to 15 cm in diameter and have a screw-like structure with a double flower envelope . The durable, free sepals are 2.5 to 8 cm long and lanceolate to elongated-lanceolate and the nerves are somewhat recognizable. The 10 to 30 free petals are linear-oblong to lanceolate with a length of 4.5 to 5 cm. The colors of the petals range from purple tinted white to blue to purple-red. The transition from petals to stamens occurs gradually. There are many stamens present. The stamens of the inner stamens are more or less wider than the anthers. The many carpels are only partially fused together and the walls between the walls of the ovary chambers are therefore double. The appendages of the carpels are triangular-conical. There are rarely 8 to, usually 10 to 30, scar rays.

The fruit is spherical with a diameter of 1.5 to 4.5 cm. The ellipsoidal-spherical seeds with a diameter of 0.5 to 1.3 mm have longitudinal rows with hairs ( trichomes ).

Chromosome number

The number of chromosomes is 2n = 28, 56, 84.

distribution

The wide distribution area extends from the Afghan province of Laghman , Nepal , the Pakistani province of Sindh , India , Bangladesh , Sri Lanka , the Andaman and Nicobar Islands , Cambodia , Laos , Myanmar , Thailand , Vietnam and the Chinese provinces of Anhui , Guangdong , Hainan , Hubei as well as Yunnan to Taiwan and from Indonesia , Malaysia , Papua New Guinea and the Philippines to the Australian states of the northern Northern Territory and northern Queensland .

Systematics

The first publication of Nymphaea nouchali took place in 1768 Nicolaas Laurens Burman in Flora Indica ... nec non Prodromus Florae capensis , p 120. synonyms for Nymphaea nouchali Burm. f. are: Nymphaea bernierana Planch. Planch , Nymphaea emirnensis . , Nymphaea madagascariensis DC. , Nymphaea stellata Willd. A homonym is Nymphaea nouchali auct. nonn., but with which often Nymphaea pubescens Willd. is meant.

Nymphaea nouchali belongs to the subgenus Brachyceras in the genus Nymphaea .

National flower

The Nymphaea nouchali with white flowers is the national flower of Bangladesh . In the coat of arms of Bangladesh there is a stylized representation of a Nymphaea nouchali . The Nymphaea nouchali with blue flowers is Sri Lanka's national flower .

swell

Individual evidence

  1. a b c d Nymphaea nouchali in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved June 22, 2013.
  2. H. Porcher Michel et al., 1995-2020: Sorting Nymphaea Names In: Multilingual Multiscript Plant Name Database .
  3. a b c d e Dezhi Fu, John H. Wiersema & Donald Padgett: Nymphaeaceae : Nymphaea nouchali , p. 118 - same text online as the printed work , In: Wu Zhengyi, Peter H. Raven & Deyuan Hong (eds.): Flora of China , Volume 6 - Caryophyllaceae through Lardizabalaceae , Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, 2001. ISBN 1-930723-05-9
  4. ^ Nymphaea nouchali at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed June 22, 2013.
  5. A. Hossain, G. Kabir, MM Ud-deen & AMS Alam: Cytological studies of Nymphaea species available in Bangladesh . In: Journal of Bio-Science . 15, 2007, pp. 7-13.
  6. Bangladesh . ( Memento from September 22, 2013 in the Internet Archive ) (PDF; 25.8 MB)
  7. Information from “The Team Lanka Yours N 'Mine Headed by Donovan Pereira (former President of the Chauffeur Tourist Guide Lecturers Association)”. ( Memento from May 20, 2013 in the Internet Archive )

Web links

Commons : Nymphaea nouchali  - collection of images, videos and audio files