Hard-fern (Blechnum spicant)
This evergreen calcifuge fern grows on damp peaty or loamy soils in deciduous and coniferous woodland. In suitably wet climates it extends onto open moorland, streamsides and hedgerows.
Mapped as `all records` in the 1962 Atlas, this species has declined in England and C. Ireland; analysis of the database reveals that most losses have occurred since 1950. Declines are due to woodland clearance and the conversion of lowland heathland to improved pasture.(link)