A biennial, sometimes perennial, herb occurring in marshes, wet meadows, rush-pastures, and by streams, ponds and ditches. Generally lowland, but reaching 460 m in Weardale (Co. Durham) and in Co. Wicklow.
This species was mapped as `all records` in the 1962 Atlas. There has been widespread decline in S. and E. England, and analysis of the database reveals that most losses have occurred since 1950. The decline is probably due to drainage of wet meadows and agricultural intensification.
European Temperate element.
There are no images in this gallery.