Australian tree fern
Cyathea cooperi
Kew's current name: Sphaeropteris cooperi (Hook. ex F.Muell.) R.M.Tryon
- light
- Part sun
- water
- Medium
- tall
- 4.7 m
- wide
- 3.4 m
Cyatheaceae
Also called Scaly Tree Fern, Cicatrice Tree Fern, Australian Tree Fern, Lacy Tree Fern, ATF
Formerly Alsophila cooperi, Alsophila hilliana
When it flowers
Not known yet in the tropics: too few flowering observations to read a season from.
Read from iNaturalist photographs of it in flower. A month counts at 50% of the best month's flowering share (smoothed over three months) and 10% of its flowering count, from at least 100 flowering observations in the band.
If a child, a pet or anyone may have eaten a plant, contact a doctor or vet straight away, or call the National Poisons Information Centre (AIIMS, New Delhi) on 1800 116 117, free and open 24 hours.
Something wrong with it?About it
- Grows as
- TreeKew's checklist, not yet checked
- Climate
- SubtropicalKew's checklist, not yet checked
- Wild in
- E. AustraliaKew's checklist, not yet checked
- Light
- Part shade (3 to 6 h)Read from RHS and NC State Extension, checked by a majority of its sourcesBacked by both sources. Sources differ: RHS part; NC State Extension full, part, shade
- Height
- 3.5 m to 5.8 mRead from RHS and NC State Extension, checked: the middle of what its sources sayHalfway between its 2 sources, which differ. Sources differ: RHS 2.5–4 m; NC State Extension 15–25 ft
- Spread
- 3.0 m to 3.7 mRead from RHS and NC State Extension, checked by a majority of its sourcesBacked by both sources. Sources differ: RHS 2.5–4 m; NC State Extension 10–12 ft
- Water
- Average: moist, well drainedRead from RHS and NC State Extension, not yet checked: its sources are splitTied: no reading has a majority of the 2 sources, so all are kept for a person to settle. Sources differ: RHS medium; NC State Extension high
- Coldest it survives
- -8.6 °C (USDA zone 8b)Read from RHS and NC State Extension, checked: the middle of what its sources sayHalfway between its 2 sources, which differ. Sources differ: RHS -5 °C; NC State Extension -12.2 °C
Not known yet: flowers, heat, hottest it survives.
In other languages (10)
- Danish
- Australsk træbregne
- Russian
- Циатея Купера
- Portuguese
- feto-arbóreo-australiano, Samambaiaçu-australiana
- French
- Cyathée de Cooper, Fanjan australien
- Afrikaans
- Australiese Boomvaring
- Lithuanian
- Gelsvasis taurėpapartis
- Chinese (China)
- 库伯番桫椤
- Chinese
- 澳洲白桫欏
- Spanish
- Árbol helecho australiano
- Hungarian
- Cooper-serlegpáfrány
Where this comes from
- iNaturalist, read 2026-10-24, CC0-1.0 (observation counts)
- Wikidata, read 2026-10-24, CC0-1.0
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- RHS, read 2026-10-25, fact, cited
- NC State Extension, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-24, CC BY-SA 2.5
- iNaturalist, read 2026-10-25, CC BY-SA
- iNaturalist, read 2026-10-25, CC BY-SA
- iNaturalist, read 2026-10-25, CC BY-SA
- 3D model: Cyathea cooperi (built for Vanagrha) by Vanagrha, own
A fact “checked by a majority of its sources” was settled by a vote of the pages it was read from, not by a person reading it; one marked “one source” rests on that page alone. Anything else not marked checked has not been checked yet. Where nothing is known, the page says so rather than guess.