Lomaria discolor, synonym Blechnum discolor, commonly called crown fern (Māori: piupiu), is a species of fern in the family Blechnaceae. This species is endemic to New Zealand.Primitive Plants. 2009 As noted by C. Michael Hogan, this species is found in a number of forest communities in diverse locations within New Zealand, and is sometimes a dominant understorey component.C. Michael Hogan. 2009
Spores are produced on specialised fronds. These are more erect, with a dark and shrivelled look.Andrew Crowe (1994). Which Native Fern?, p. 39. Auckland: Viking. .
References
C. Michael Hogan. 2009. Crown Fern: Blechnum discolor, Globaltwitcher.com, ed. N. Stromberg Primitive Plants. 2009. True Ferns