Pyrrosia lingua (Thunb.) Farw.

Tongue Fern

Rhizome long-creeping, thin; scales dark-centred, fringed. Sterile and fertile fronds similar. Fronds lanceolate, 10-15 cm long or sometimes much more, mostly about 2 cm wide, parallel veins often prominent. Sori round, covering the upper part of the frond.

Popular in cultivation with a range of cultivars including 'Cristata' with tips crested with bifurcate divided, 'Monstrosa' of uncertain application, and 'Variegata' with variegated fronds.

Needs shelter and warmth.

Taiwan, S Japan, China, Vietnam.

Stalks at least half the length of the blade.

Source: Spencer, R. (1995). Polypodiaceae. 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      Polypodiaceae
genus       Pyrrosia Mirb.