Species Detail - Greater Knapweed (Centaurea scabiosa) - Species information displayed is based on the dataset "BSBI tetrad data for Ireland".

Terrestrial Map - 10km

Distribution of the number of records recorded within each 10km grid square (ITM).
Live Map

Marine Map - 50km

Distribution of the number of records recorded within each 50km grid square (WGS84).
Live Map
Centaurea scabiosa
Greater Knapweed
Acrocentron scabiosa, Colymbada scabiosa
N/A
cesca
L.
flowering plant
Species
17
13
12
01/01/1987
31/12/2010
12 April (recorded in 2004)
19 October (recorded in 2002)
Botanical Society of the British Isles, BSBI tetrad data for Ireland, National Biodiversity Data Centre, Ireland, Greater Knapweed (Centaurea scabiosa), accessed 20 September 2020, <https://maps.biodiversityireland.ie/Dataset/9/Species/29709>

Records per month (across all datasets)

Records per year (across all datasets)