Species Detail - Square-stalked St John's-wort (Hypericum tetrapterum) - Species information displayed is based on the dataset "The Flora of County Waterford".

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
Hypericum tetrapterum
Square-stalked St John's-wort
Hypericum quadrangulum, Square St. John's Wort
N/A
hytet
Fr.
flowering plant
Species
388
37
8
29/05/1897
21/05/2012
1 January (recorded in 1970)
7 December (recorded in 2005)
Paul R Green, The Flora of County Waterford, National Biodiversity Data Centre, Ireland, Square-stalked St John's-wort (Hypericum tetrapterum), accessed 24 April 2024, <https://maps.biodiversityireland.ie/Dataset/23/Species/42603>

Records per month (across all datasets)

Records per year (across all datasets)