Tra từ black tree fern - Từ điển WordNet v3.1

Từ điển WordNet v3.1 - WordNet Dictionary

black tree fern

noun

a showy tree fern of New Zealand and Australia having a crown of pinnated fronds with whitish undersides
• Syn:
silver tree fern, sago fern, Cyathea medullaris
• Hypernyms:
tree fern
• Member Holonyms:
Cyathea, genus Cyathea