Scientific name: Blechnum novae-zelandiae
Wetland plant group: Fern
Plant growth form: Up to 1m tall
Flowering: Does not flower. Spores are borne on dark brown fronds.
Related species: There a number of Blechnum ferns that usually grow in forests and are occasionally found in wetlands, perched on drier sites. Another common variety is the smaller Blechnum minus.
The fronds of swamp kiokio are light green, often tinged with red. There are separate fertile fronds, which are dark brown and shrivelled, that carry the spores.