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Botanical Name: Nymphaea alba
Species: N. alba
Synonyms : N. occidentalis. Castalia alba. C. speciosa.
Common Names: White Water Lily, European white waterlily, White water rose or White nenuphar
Habitat: Nymphaea alba is native to most of Europe, including Britain. It grows in marshes, ponds, slow moving streams, lakes and canals up to 1.2m deep.
Nymphaea alba is a perennial water plant. It grows in water that is 30–150 cm (12–59 in) deep and likes large ponds and lakes. The leaves can be up to 30 cm (12 in) in diameter and they take up a spread of 150 cm (59 in) per plant. It is in flower from Jul to August, and the seeds ripen from Aug to October. The flowers are white and they have many small stamens inside. It is found all over Europe and in parts of North Africa and the Middle East in freshwater.
The red variety (Nymphaea alba f. rosea) which is in cultivation came from lake Fagertärn (“Fair tarn”) in the forest of Tiveden, Sweden, where they were discovered in the early 19th century. The discovery led to a large scale exploitation which nearly made it extinct in the wild before it was protected.
The flowers are hermaphrodite (have both male and female organs) and are pollinated by Flies, beetles, self.The plant is self-fertile.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It can grow in water.
A water plant requiring a rich soil and a sunny position in still or slowly moving water. Best grown in 2 – 2.5 metres of water. Prefers a pH between 6 and 7. Dislikes acid conditions according to another report. This species is hardy to about -20°c. There are two basic types of plant in this genus:- ‘crawlers’ are species with horizontal roots that often spread freely, with new plants being formed at intervals along the root. These species are useful for naturalising, but they do not flower very freely in the cool summers of Britain. ‘clumpers’ have vertical roots and form slowly spreading clumps and produce offsets around the crown. These forms flower much more freely in Britain. A very ornamental plant. The flowers, which only open in bright sunshine, have a soft delicate scent.
Seed – sow as soon as it is ripe in a greenhouse in pots submerged under 25mm of water. Prick out into individual pots as soon as the first true leaf appears and grow them on in water in a greenhouse for at least two years before planting them out in late spring. The seed is collected by wrapping the developing seed head in a muslin bag to avoid the seed being lost. Harvest it 10 days after it sinks below the soil surface or as soon as it reappears. Division in May. Each portion must have at least one eye. Submerge in pots in shallow water until established
Edible Uses: Root – cooked. Eaten when several years old. It contains up to 40% starch, 6% protein. Some caution is advised, see the notes above on toxicity. The roasted seed is a coffee substitute. Seed – cooked. It contains about 47% starch.
The rhizome is anodyne, antiscrofulatic, astringent, cardiotonic, demulcent and sedative. A decoction of the root is used in the treatment of dysentery or diarrhoea caused by irritable bowel syndrome. It has also been used to treat bronchial catarrh and kidney pain and can be taken as a gargle for sore throats. Externally it can be used to make a douche to treat vaginal soreness or discharges. In combination with slippery elm (Ulmus rubra) or flax (Linum usitatissimum) it is used as a poultice to treat boils and abscesses. The rhizome is harvested in the autumn and can be dried for later use. The flowers are anaphrodisiac and sedative. They have a generally calming and sedative effect upon the nervous system, reputedly reducing the sex drive and making them useful in the treatment of insomnia, anxiety and similar disorders. A complete cure of uterine cancer by a decoction and uterine injection has been recorded. According to one report the plant is not used in modern herbal practice, though it has been quoted as a remedy for dysentery.
The rhizome may be used to make a douche for vaginal soreness and discharge, or to make a poultice, often in combination with slippery elm or linseed, for boils and abscesses. The plant has been found to lower blood pressure in animals. The flowers are anaphrodisiac and sedative. They have a generally calming and sedative effect upon the nervous system, reputedly reducing the sex drive and making them useful in the treatment of insomnia, anxiety and similar disorders. A complete cure of uterine cancer by a decoction and uterine injection has been recorded.
Known Hazards: One report suggests that the plant is poisonous but gives no further details. The plant contains the toxic alkaloids nupharine and nymphaeine, these substances have an effect on the nervous system.
Disclaimer : The information presented herein is intended for educational purposes only. Individual results may vary, and before using any supplement, it is always advisable to consult with your own health care provider.