Potamogeton polygonifolius

Photo © Carl Farmer
25 Aug 2002 Scorrybreac

Common in bogs and edges of lochs

Fruit spike 1-4 cm. Floating leaves, blade 2-6 x 1-4 cm.

Skye ID: Both floating and submerged leaves stalked. Leaf-stalks typically much longer than leaf-blades; leaf not "jointed" (see Jointed Pondweed)

Other features: By far Skye's commonest pondweed outside lochs, and in lochs it is one of the two commonest, the other being Jointed Pondweed. Leaves very variable, see pictures below. Stalk of fruit-spike does not widen towards the spike. Fruit densely packed.

Photo © Carl Farmer
25 Aug 2002 Scorrybreac

Narrower leaves, in deep but tiny pool.

Very narrow leaves, in deep water of a loch

Photo © Carl Farmer 2 Jul 2003 River Snizort		Photo © Carl Farmer 2 Jul 2003 River Snizort Spike 16 mm long
Plant with spike. The flowers consist of 4 green sepals with no petals, enclosing 4 pink carpels. (The green shoot next to the fruit is not part of our plant.)

Skye Flora