Crown fern

Blechnum discolor

Blechnum discolor commonly called crown fern (Māori: kiokio), is a species of fern in the family Blechnaceae. This species is endemic to New Zealand. This species is found in a number of forest communities in diverse locations within New Zealand, and is sometimes a dominant understory component.
Spores are produced on specialised fronds. These are more erect, with a dark and shrivelled look.