Cyathea australis subsp. australis

Rough Tree Fern at Kianga, NSW

Cyathea australis subsp. australis at Kianga, NSW - 1 Jul 2023
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Identification history

Cyathea australis subsp. australis 1 Jul 2023 Tapirlord
Dicksonia antarctica 1 Jul 2023 CarbonAI
Cyathea australis subsp. australis 1 Jul 2023 LyndalT

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9 comments

dcnicholls wrote:
   1 Jul 2023
C. cooperi?
dcnicholls wrote:
   1 Jul 2023
Trunk is a bit thin for normal C. australis. Need a c loser look at the trunk.
plants wrote:
   1 Jul 2023
No C.cooperi there as far as I know.
dcnicholls wrote:
   1 Jul 2023
I have seen similar plants near Crystal Creek near Murwillumbah that keyed out as C. australis, but were morphologically far more gracile than the typical thick-trunked C. australis we see in the Canberra and South coast region (ie gracile like this specimen). Needs further investigation. Interesting.
plants wrote:
   2 Jul 2023
It is very unikely that C. cooperi ocours in natural rainforest that far south. Its S limit naturally is about Lake Conola.
dcnicholls wrote:
   3 Jul 2023
Perhaps another Cyathea species, then? It definitely does not look like the C. australis that I'm familiar with.
plants wrote:
   3 Jul 2023
The only other species is Cyathea leichhardtiana, and it is not that. This is not on my list for that site, but C. australis is.
dcnicholls wrote:
   3 Jul 2023
OK. C. australis it is. It strikes me that there are variations in C. australis that might require some differentiation.
plants wrote:
   14 Jul 2023
I revisited the site this week and the only two tree ferns in that valley are C. australis and D.antarctica.

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Location information

Sighting information

  • 101 - 1,000 Abundance
  • 1 Jul 2023 10:50 AM Recorded on
  • LyndalT Recorded by

Additional information

  • 1 metre to 5 metres Plant height
  • False In flower

Species information

Record quality

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  • More than one media file
  • Confirmed by an expert moderator
  • Nearby sighting(s) of same species
  • GPS evidence of location
  • Description
  • Additional attributes
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