Species Detail - Hard Shield-fern (Polystichum aculeatum) - 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
Polystichum aculeatum
Hard Shield-fern
Aspidium aculeatum, Aspidium aculeatum subsp. lobatum, Aspidium lobatum, Aspidium spinulosum subsp. lobatum, Dryopteris lobata, Polypodium aculeatum, Polypodium lobatum, Polystichum aculeatum var. lobatum, Polystichum lobatum, Polystichum lobatum
N/A
poacu
(L.) Roth
fern
Species
317
120
45
01/01/1600
31/12/2010
27 January (recorded in 2019)
25 November (recorded in 2010)
Botanical Society of the British Isles, BSBI tetrad data for Ireland, National Biodiversity Data Centre, Ireland, Hard Shield-fern (Polystichum aculeatum), accessed 21 September 2020, <https://maps.biodiversityireland.ie/Dataset/9/Species/127362>

Records per month (across all datasets)

Records per year (across all datasets)