Austroblechnum penna-marina

Austroblechnum penna-marina, synonym Blechnum penna-marina, known as Antarctic hard-fern, alpine water fern and pinque (Chilean Spanish), is a species of fern in the family Blechnaceae, with a natural range from the Araucanía Region to the south and from the coast to the tree line of the Magellanic forests in Chile and adjacent areas of Argentina. It is also found in New Zealand, Australia and some Pacific islands. It is evergreen and grows to .
In cultivation this hardy species has gained the Royal Horticultural Society's Award of Garden Merit.