Cyathea medullaris

Luxuriant groups of C. medullaris are a common sight in the New Zealand forest

The black trunk with characteristic hexagonal stipe bases seen here from this specimen from RBGE, Edinburgh

The expanding frond forms a fiddlehead or koru

Cyathea medullaris, popularly known as the black tree fern, is a large tree fern up to 20 m tall. It is distributed across the south-west Pacific from Fiji to Pitcairn and New Zealand. It is called mamaku, katātā, kōrau, or pītau in the Māori language.

单词	Cyathea medullaris
释义	Cyathea medullaris 英语百科 Cyathea medullaris Cyathea medullaris, popularly known as the black tree fern, is a large tree fern up to 20 m tall. It is distributed across the south-west Pacific from Fiji to Pitcairn and New Zealand. It is called mamaku, katātā, kōrau, or pītau in the Māori language.
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