genus blechnum definition

  • noun:
    • in some category systems put into household Polypodiaceae; terrestrial ferns of cosmopolitan circulation primarily in south hemisphere: difficult ferns
    • in some classification methods placed in household Polypodiaceae; terrestrial ferns of cosmopolitan circulation primarily in south hemisphere: hard ferns
    • in certain classification systems put in family members Polypodiaceae; terrestrial ferns of cosmopolitan distribution mainly in south hemisphere: tough ferns

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  • Hypernym for "genus blechnum"
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