WHITE WATER-LILY

Nymphaea alba

Water-Lily Family [Nymphaeaceae]  

month8jun month8june month8jul month8july month8Aug month8sep month8sept

status
statusZnative
 
flower
flower8white
 
inner
inner8yellow
 
morph
morph8actino
 
petals
petalsZmany
 
stem
stem8round
 
smell
smell8perfume smell8perfumed smell8fragrant
scent

1st July 2005, Eskdale Valley, Cumbria Photo: © RWD
As happy to grow on mountain tarns as canals and fishing ponds. Mature leaves rarely submerged.


1st July 2005, Eskdale Valley, Cumbria Photo: © RWD
Leaves green tending to reddish-brown. Satin on upper surface.


1st Aug 2008, Fishermens Reservoir, Rufford, Lancs. Photo: © RWD
Leaf veins form a reticulum near the leaf edge.


9th Aug 2007, A moorland-top tarn, Pendle Hill, Lancs Photo: © RWD
Flowers white with between 12 and 35 petals and a yellow centre of stamens.


1st July 2005, Eskdale Valley, Cumbria Photo: © RWD
Between 46 to 125 yellow stamens in centre.


1st July 2005, Eskdale Valley, Cumbria Photo: © RWD


27th July 2008, Roe Green, Walkden, Gtr M/cr. Photo: © Martin Rosenfield
Dozens of curved stamens nestle in the centre.


1st July 2005, Eskdale Valley, Cumbria Photo: © RWD


9th Aug 2007, A moorland-top tarn, Pendle Hill, Lancs Photo: © RWD
An as yet un-opened flower bud; four oval sepals but sometimes only three or as many as five.


9th Aug 2007, A moorland-top tarn, Pendle Hill, Lancs Photo: © RWD
New leaves emerge from the depths curled up. Veins prominent on brownish underside.
There are two sub-species:

Other exotic species exist with coloured flowers, red, yellow and pink, which are usually 'planted' or garden escapes which may spread. They are usually referred to as Nympaea marliaca and are hybrids of Nymphaea alba.


Uniquely identifiable characteristics : A large multi-petalled white flower with very large leaves floating upon still freshwater. Beware some coloured aquatic garden varieties.

No relation to : Fringed Water-Lily [a plant with similar name] which is yellow but is not a Water-Lily and instead belongs to the Bogbean family.

The roots of this plant yield a brown dye.

White Water-Lily contains several poisonous alkaloids: Nupharine (a cardenolide glycoside), Nymphaline, Aporphines, tannins (which account for the astringency) and some Myrcitrin (in the leaves).

A FLAVONOL & its GLYCOSIDE

Myricitrin is Flavonol Glycoside based upon the flavonol Myricetin, being the 3-O-rhamnoside (or thamnoside) of Myricetin. Myricetrin was first identified in species of Myrica cerifera, the Bayberry Tree, not native to the UK, but which grows in North america.

Myricetin is a flavonol flavonoid similar to Quercetin and just shown for illustration purposes. Found also in grapes, berries, fruits, herbs and vegetables it has anti-septic properties, and it was found it can also lower the incidence of prostrate cancer.

Neither of these should be confused with Myristicin, a poisonous phenylpropanoid.


  Nymphaea alba  ⇐ Global Aspect ⇒ Nymphaeaceae  

Distribution
family8Water-Lily family8Nymhaeacaea

 BSBI maps
genus8Nymphaea
Nymphaea
(White Water-lilies)

WHITE WATER-LILY

Nymphaea alba

Water-Lily Family [Nymphaeaceae]  

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