Id help needed

Id help needed

Observation - Id help needed - UK and Ireland. Description: This little beck is covered in a water weed, photo taken this week in upland wet woodland/ alder carr. leaves are fairly delicate and about 1.5 inches long.

This little beck is covered in a water weed, photo taken this week in upland wet woodland/ alder carr. leaves are fairly delicate and about 1.5 inches long.