Noun potato fern has 2 senses
  1. potato fern, Marattia salicina - large Australasian evergreen fern with an edible rhizome sometimes used as a vegetable by indigenous people
    --1 is a kind of fern
    --1 is a member of Marattia, genus Marattia
  2. potato fern, Solanopteris bifrons - small epiphytic fern of South America with tuberous swellings along rhizomes
    --2 is a kind of fern
    --2 is a member of Solanopteris, genus Solanopteris
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