West Highland Flora

Nuphar lutea


Yellow Water-lily

 

Nuphar lutea

Photo Carl Farmer
21 Jun 2004 Brochel, Raasay

Quite common in Argyll but rare further north.  In lochs

Flower diameter c 4-6 cm.  Leaves c 20-30 cm long.

ID: Leaf has a central vein with side veins coming off it at regular intervals from the base to the tip, whereas in White Water-Lily the main veins radiate from a single point.  Least Water-lily (Nuphar pumila) is similar to N lutea but much smaller.  Its flowers are under 4 cm wide and its leaves less than 15 cm long.  The hybrid occurs and is intermediate.

Other features: Flower is on a long stalk, the top end of which sticks out of the water for a short distance so that the flower is not actually floating like that of White Water-lily.

The fruit is covered with a disc that has about 14-20 rays and an un-notched margin.  N pumila fruit has c 8-10 rays and the margin is well notched between each pair of rays.

 

Nuphar lutea

Photo Carl Farmer
21 Jun 2004 Brochel, Raasay


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