Description: This rather rare fern is mostly confined to rocky outcrops and mountain cliffs in the Mournes and along the basaltic escarpment from Cave Hill to Benbradagh. Northern Ireland plants tend to be small and inconspicuous, growing in fissures in the rock.

All names: Cryptogramma crispa (L.) R.Br. ex Hook.

Distribution Map from NBN: Cryptogramma crispa at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Cryptogramma crispa at iNaturalist World Species Observations database.