black tree fern | sense examples, Usage and Definition from wordnet dictionary online

Noun black tree fern has 1 sense

silver tree fern, sago fern, black tree fern, Cyathea medullaris - showy tree fern of New Zealand and Australia area having a crown of much-pinnated fronds with whitish undersides
--₁ is a kind of tree fern
--₁ is a member of Cyathea, genus Cyathea