Noun genus blechnum has 1 sense
  1. Blechnum, genus Blechnum - in some classification systems placed in family Polypodiaceae; terrestrial ferns of cosmopolitan distribution mainly in southern hemisphere: hard ferns
    --1 is a kind of fern genus
    --1 is a member of Blechnaceae, family Blechnaceae
    --1 has members: hard fern
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