Potamogeton coloratus

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Potamogeton coloratus
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Alismatales
Family: Potamogetonaceae
Genus: Potamogeton
Species: P. coloratus
Binomial name
Potamogeton coloratus

Potamogeton coloratus or fen pondweed, is an aquatic species in the genus Potamogeton. It is found in shallow peaty acid water and fens.


This species resembles broad-leaved pondweed Potamogeton natans in its habitat and shape of leaves.

However in contrast all leaves are submerged as well as floating leaves -shorter stalks on submerged than the floating. The leaves are thin, translucent, reddish brown, tapered into the stalk. They have a fine network of veins. It has no flexible joint at the top of the leaf stalk. Oval elliptical floating leaves are 5 to 10 cm long, submerged ones are narrow.

Flowers June to July.

The main difference of this species from Broad Leaved pondweed Potamogeton natans and Bog Pondweed Potamogeton polygonifolius is the fruits are smaller 1.9mm long and 1.3mm wide [1]


  1. ^ Rose, Francis (2006). The Wild Flower Key. Frederick Warne & Co. pp. 491–492. ISBN 978-0-7232-5175-0.