Xanthorrhoea sp.

Grass Tree at Bawley Point, NSW

Xanthorrhoea sp. at Bawley Point, NSW - suppressed
Xanthorrhoea sp. at Bawley Point, NSW - suppressed
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Identification history

Xanthorrhoea sp. 8 Jan 2025 marcycad
Xanthorrhoea sp. 26 Jun 2018 BettyDonWood
Xanthorrhoea australis 20 May 2018 Marg

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5 comments

JackieMiles wrote:
   26 Jun 2018
With no trunk and at that location it is almost certain to be X. concava, but I'm not willing to confirm it. They're a nasty group to ID, even with the plant in the hand.
Marg wrote:
   27 Jun 2018
Thanks Jackie and BettyDon. I had no idea they were so tricky to i.d.
BettyDonWood wrote:
   27 Jun 2018
Xanthorrhoea australis has a definite trunk above ground. It is extraordinarily difficult to ID the species with underground trunks, even in flower and with the bracts around the flowers and between the flowers intact. One of the characters in the Plantnet key is th relative length of flower stalk and flower spike.
JackieMiles wrote:
   27 Jun 2018
Which means that a whole of plant shot showing whether there is a trunk or not and the stalk/spike length is a good thing, though still doesn't guarantee you an ID. Habitat may also be useful eg if it is in heath, especially if poorly drained, it is likely to be resinosa. X. australis is more likely in elevated, rocky sites (but not invariably).
marcycad wrote:
   8 Jan 2025
The absence of prominent cluster bracts over the flower spike rules out X. australis, the upper aspect of the leaf appears flattened to concave in some, this is also inconsistent with X. australis, therefore this is likely either X. resinosa or the affiliated X. concava.

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Location information

Sighting information

Species information

  • Xanthorrhoea sp. Scientific name
  • Grass Tree Common name
  • Sensitive
  • Local native
  • Non-invasive or negligible
  • Machine learning
  • In flower

Record quality

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