Cowbane Cicuta virosa
The frothy blossoms of cowbane often adorn ponds and ditches.
Its stem is purple-striped and its leaves are coarsley toothed. In many places it has been eradicated because, as the name implies, it is poisonous to cattle.
More common in Northern Ireland than the rest of the UK.
Marshes and ditches.
Best time to see
When it flowers July-August.
County flower of County Antrim.