Species Detail - Common Knapweed (Centaurea nigra) - Species information displayed is based on the dataset "General Biodiversity Records from Ireland".
Terrestrial Map - 10kmDistribution of the number of records recorded within each 10km grid square (ITM).
Marine Map - 50kmDistribution of the number of records recorded within each 50km grid square (WGS84).
Black Knapweed, Hardhead
1 January (recorded in 1970)
29 December (recorded in 2018)
Collated by the National Biodiversity Data Centre from different sources, General Biodiversity Records from Ireland, National Biodiversity Data Centre, Ireland, Common Knapweed (Centaurea nigra), accessed 30 September 2022, <https://maps.biodiversityireland.ie/Dataset/7/Species/29714>