Rough Tree Fern

Also known as:
Scaly Tree Fern, Australian Tree Fern

General description

Tree fern <12m height. Light green fronds (paler undersides) 4-6m in length. Trunk has large oval shape scars left by fallen fronds. Similar to mamaku (Cyathea medullaris) apart from its pale brown stipes (frond stalks). The stipes have two different types of scales attached (long white and short red brown). On fertile fronds the sori do not have an indusium (a flap of colourless tissue).

Wind dispersed spores.

Could replace native species, may hybridise with native species.

Site management

Recommended approaches

1. Small seedlings can be hand pulled.
2. For chemical control options contact the ARC Biosecurity team on 09 366 2000 or

Caution: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed.

Similar species

Cyathea medullaris

The native mamaku has black stipes in comparison to the paler stipes of C. cooperi.

Search tags

RPMS status

Surveillance - Whole Region
National Pest Plant Accord species - nationwide
rough tree fern - Main species image