Giant Hogweed (Heracleum mantegazzianum) - Detail

Species Detail - Giant Hogweed (Heracleum mantegazzianum) - Species information displayed is based on the dataset "Ireland's BioBlitz".

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

Species image

Scientific Name Heracleum mantegazzianum

Common Name Giant Hogweed

Taxon Version Key NBNSYS0000003711 UnverifiedUnverified

Synonyms

Designations Invasive Species: Invasive Species || Invasive Species: Invasive Species >> High Impact Invasive Species || Invasive Species: Invasive Species >> Regulation S.I. 477 (Ireland)

Abbreviation heman

Authority Sommier & Levier

Group flowering plant

Rank Species

Number Of Records 4

Number Of 10Km Squares 4

Number Of 50Km Squares 4

Oldest Record 21/05/2011

Newest Record 24/05/2014

Phenology - earliest record (across all datasets) 2 January (recorded in 2018)

Phenology - latest record (across all datasets) 7 December (recorded in 1987)

Species Profiles

Citation Collated by the National Biodiversity Data Centre from different sources, Ireland's BioBlitz, National Biodiversity Data Centre, Ireland, Giant Hogweed (Heracleum mantegazzianum), accessed 26 April 2025, <https://maps.biodiversityireland.ie/Dataset/189/Species/29131>

Species Detail - Giant Hogweed (Heracleum mantegazzianum) - Species information displayed is based on the dataset "Ireland's BioBlitz".

Terrestrial Map - 10km

Marine Map - 50km

Species image

Records per month (across all datasets)

Records per year (across all datasets)