Species Detail - Hogweed (Heracleum sphondylium) - Species information displayed is based on the dataset "Discrete vascular plant surveys".

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
Heracleum sphondylium
Hogweed
Cow Parsnip, Hogweed, Hogweed, Keck
N/A
hesph
L.
flowering plant
Species
165
71
36
01/01/1982
29/07/2020
1 January (recorded in 1970)
31 December (recorded in 2017)
Collated by the National Biodiversity Data Centre from different sources, Discrete vascular plant surveys, National Biodiversity Data Centre, Ireland, Hogweed (Heracleum sphondylium), accessed 22 February 2025, <https://maps.biodiversityireland.ie/Dataset/190/Species/29130>

Records per month (across all datasets)

Records per year (across all datasets)