Blechnum penna-marina (Poir.) Kuhn

Alpine Water Fern

Rhizome mostly long-creeping or erect, thin, branching. Sterile and fertile fronds different. Fronds mostly 10-20 cm long, scattered on rhizome, leathery, reddish when young. Sterile fronds narrowly linear in outline, the broad bases of the segments joined to the main axis. Fertile fronds erect, extremely narrow, slightly longer than the sterile ones, segments less than 1 cm long, curving, well spaced.

Will tolerate cool conditions.

SE Australia, NZ, & subantarctic Iss, S America.

Small fronds with long-creeping rhizomes and short, mostly curved segments less than 1 cm long.

Source: Spencer, R. (1995). Blechnaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 1, Ferns, conifers & their allies. The identification of garden and cultivated plants. University of New South Wales Press.

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Distribution map
kingdom Plantae
phylum   Tracheophyta
class    Polypodiopsida
order     Polypodiales
family      Blechnaceae
genus       Blechnum L.