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Small Yellow Pond Lily, Nuphar pumila

Nuphar pumila is commonly referred to as the Small yellow pond-lily. It is an aquatic, perennial plant in the Nymphaeaceae family. The species is also known as the dwarf water lily, due to the fact that it is the dwarf species of Nuphar lutea. It is important to note however, while N. lutea has a star-shaped form of the stigma disc and the undersides of its leaves are glabrous, N. pumila has a round stigma disc and the undersides of its leaves are fine-haired.

N. pumila has large oval floating leaves. The submerged leaves are smaller and round. It has a thick creeping underground stem or rhizome. It has yellow flowers that bloom from July to August and are pollinated by flies. The flowers typically have 4 to 6 petals, have many stamens and are green until maturity.

This plant is most successful in sunny environments and predominantly in lakes and ponds, as well as, slow flowing rivers. N. pumila ranges from Northern and Central Europe to Northern Asia with several noted habitats in North America. It is considered endangered in France, Switzerland and the United Kingdom.

Image Caption: Small yellow pond lily (Nuphar pumila). Credit: KENPEI/Wikipedia (CC BY-SA 3.0)

Small Yellow Pond Lily Nuphar pumila


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