Key to Tasmanian Dicots
Cyathea australis (Cyatheaceae)

Cyathea australis (rough tree fern) is one of Tasmania's three tree fern species (all are native). It is less common than Dicksonia antarctica, but much more common than Cyathea cunninghamii. It sometimes hybridises with the latter species to produce the plants called Cyathea Xmarcescens. It has a moderate to large trunk (often a few metres tall and 20-30cm in diameter) that is not fibrous.

The common name (rough tree fern) refers to the trunk with its hard persistent stalks of old leaves, not the foliage itself, which is much softer than that of Dicksonia.


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