Australian tree fern


Definition of Australian tree fern

: a fast-growing tree fern (Cyathea cooperi) native to Australia that has broad, finely-divided fronds and a thin stem and that is cultivated as an ornamental His black-bottom lagoon-style pool features two 20-feet-tall Australian tree ferns nearby.— Christine Cole, Orlando Sentinel, 2 Apr. 2004 An avenue of Australian tree ferns spreads great green fronds to create a delicate pattern of light and dark over indigenous Irish ferns below.— Brian De Breffny, Architectural Digest, October 1986

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First Known Use of Australian tree fern

1857, in the meaning defined above

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The first known use of Australian tree fern was in 1857

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Cite this Entry

“Australian tree fern.” Dictionary, Merriam-Webster, Accessed 16 Jun. 2021.

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