Sphaeropteris excelsa, synonym Cyathea brownii, commonly known as the Norfolk tree fern or smooth tree fern, is probably the largest fern species in the...

distinction. Sphaeropteris has scales without distinct margins, whereas the other genera have scales with distinct margins. The genus Sphaeropteris was erected...

Sphaeropteris cooperi, synonym Cyathea cooperi, also known as lacy tree fern, scaly tree fern, or Cooper's tree fern, is a tree fern native to Australia...

economic application, chiefly as sources of starch. These include the Sphaeropteris excelsa of Norfolk Island that was threatened with extinction for the sake...

non-indigenous Sphaeropteris cooperi (syn. Cyathea cooperi), which has red and white scales on its new growth. The alien Sphaeropteris cooperi can be...

(a tree fern family) Gully tree fern Alsophila cunninghamii Mamaku Sphaeropteris medullaris Mountain tree fern Alsophila colensoi Silver fern or ponga...