A slightly smaller version of our native evergreen fern from shady places often growing in large drifts. Great all year interest in shady borders amongst other shade loving wild flowers. The fertile long green leathery fronds are where the plant gets the tongue part of its name from and on this variety have ruffled edges. Grows well on damp and shaded walls. Deep to dappled shade in humus rich moist soil. Can also be grown as an epiphyte in trees if the roots are wrapped with peat and moss.