Fen Nettle is very similar to Common Nettle but the flower clusters begin at a higher point on the stem than those of Common Nettle. The leaves are opposite, long-stalked, coarsely toothed but are different to those of Common Nettle in being long, narrow and pointed. The fine, dense hairs on this nettle are usually non-stinging. It grows to 120cm high and is found on damp neutral soil such as fens and riverbanks but not on waste ground or on disturbed habitats. It is a rare introduced perennial and is only found in the South East. It belongs to the Nettle family.
I first recorded and photographed this plant at Johnstown Castle, Co Wexford in 2012.
If you are satisfied you have correctly identified this plant, please submit your sighting to the National Biodiversity Data Centre