Plants
Grasses
Sighting 4641565

Dichanthium sericeum

Queensland Blue-grass at Mitchell, ACT

Dichanthium sericeum at Mitchell, ACT - 26 Jan 2025 11:21 AM
Dichanthium sericeum at Mitchell, ACT - 26 Jan 2025 11:21 AM
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Identification history

Dichanthium sericeum 13 Feb 2025 Tapirlord
Dichanthium setosum 26 Jan 2025 walter

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User's notes

Fits the description of D. setosum, as distinct from D. sericeum, in that it has fewer flower head branches (2-3), unstalked spiklets are longer (5-6mm), and the upper spikelet is male

12 comments

walter wrote:
   26 Jan 2025
walter wrote:
   26 Jan 2025
Just realised that I had reported plants at this locality as Dichanthium setaceum on 22 March 2020.
Possible that I misidentified them ?
walter
walter wrote:
   26 Jan 2025
walter wrote:
   26 Jan 2025
Sorry - I mean D. sericeum , not D. setaceum
MichaelMulvaney wrote:
   26 Jan 2025
@EmmaCook - this would be a significant range extension of this nationally vulnerable species and another threatened species for Crace Nature Reserve - do you think you could make a collection and confirm ID.
walter wrote:
   26 Jan 2025
Yes, I can do that
Tapirlord wrote:
   27 Jan 2025
I agree. It fits the description but will need to be collected.
EmmaCook wrote:
   4 Feb 2025
@MichaelMulvaney I can grab a collection this week.
MichaelMulvaney wrote:
   4 Feb 2025
Thanks Emma - much appreciated
Tapirlord wrote:
   13 Feb 2025
Emma and I examined specimens collected from this site and we are of the opinion that these plants are Dichanthium sericeum. The leaf sheath is covered in tubercle-based not restricted to the node; racemes between 2-5 per inflorescence though generally 3-4; pedicellate spikelets sterile; absence of distinctive purplish colouration as present in D.setosum. A shame is not the rare one but I must say that this is a super nice patch of a grass that isn't super common regionally.
MattM wrote:
   13 Feb 2025
Thanks for doing the follow up.
walter wrote:
   19 Feb 2025
Thanks Matt
I also submitted a sample to the ANBG. The reply from Helen Kennedy also suggested Dichanthium sericeum subsp, sericeum

Walter

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Location information

Sighting information

Additional information

  • 30cm to 1 metre Plant height
  • True In flower

Species information

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