Blechnum vulcanicum (L.) Roth

Wedge Water Fern

Rhizome erect, short-creeping. Sterile and fertile fronds different. Sterile fronds elliptic to triangular in outline, to 40 cm long, rough, hairy below. Segments in middle or below the longest, mostly 3-6 cm long, basal pair arching downwards and cut to the midrib at the base on the lowermost side; margins wavy, minutely toothed. Fertile fronds about as long as the sterile ones. Stalk bases rough and long-scaly.

Will tolerate cool conditions.

Australia, Indonesia, Pacific Is.

Stalk with long basal scales; basal frond segments arching downwards and with a flange cut to the midrib from the base at the join with the axis, the flange often covering the midrib.

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.