FLORA OF ICELAND elements: Potamogeton gramineus, Various-leaved Pondweed

Potamogeton gramineus; the Various-leaved Pondweed is a common pondweed on Iceland. This plant grows both with submerged leaves and floating leaves in ponds and lakes. On Iceland there are a few more Potageton species growing in ponds, lakes, waterways. They can be differentiated by their leaf-shapes. One has to take into account that submerged leaves and surface leaves can differ. On the page of the Red Pondweed a table is presented how to differentiate these species. You can open this table here

Alas I do not have pictures of other Potamogetonaceae (pondweed family) members yet.

This species can also be found in the lower regions of the highlands.

Potamogeton_gramineus / Various-leaved pondweed is a member of the pondweed family (Potamogetonaceae). The Icelandic name of the Alternate Water-milfoil is Grasnykra.

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A brief introduction to Iceland plants
Text & Photographs by Dick Vuijk - unless stated otherwise


More detailed view of leaves and inflorescenses - note the differences between submerged and floating leaves.
Inflorescense.
Emerging floating leaf and inflorescense.
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Leaves: differences submerged and floating leaves.

Inflorescense.

Emerging floating leaf.

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