button fern is a noun meaning "fern of New Zealand and Australia having trailing fronds with dark green buttonlike leaflets". It carries 2 recorded senses.
fern of New Zealand and Australia having trailing fronds with dark green buttonlike leaflets
Jamaican fern having round buttonlike bulbils
Definitions, synonyms and semantic relations for button fern come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.