Acianthus collinus

Inland Mosquito Orchid at Bullen Range

Acianthus collinus at Bullen Range - 19 Jun 2024
Acianthus collinus at Bullen Range - 19 Jun 2024
Acianthus collinus at Bullen Range - 19 Jun 2024
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Identification history

Acianthus collinus 19 Jun 2024 Tapirlord
Acianthus collinus 19 Jun 2024 nathkay

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Significant sighting

Tapirlord noted:

19 Jun 2024

Very very nice, this species has previously only been known from Black Mountain and Aranda, a distribution that is quite surprising given how common A.collinus is NSW reserves further inland. This will mark a 5th colony in the ACT in a 4th Nature reserves, and most significantly the first outside of the BM sandstone complex.


BethanyDunne wrote:
   19 Jun 2024
I wasn't sure if it might be A. exsertus? What are the distinguishing features between the two?
Tapirlord wrote:
   20 Jun 2024
The greener leaf (as opposed to glaucous) and dry forest habitat are both suggestive of A.collinus, though this isn't by any means conclusive, by the real kicker here is the presence of flower buds. A.exsertus is an autumn species that finishes up in May, whilst A.collinus is only just starting now. This plant having flower buds makes a very strong case for it being A.collinus, though ideally we'd have flowers to confirm ofc.
BethanyDunne wrote:
   20 Jun 2024
Very interesting, will try get back for flowering!

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Location information

Sighting information

Additional information

  • Less than 10cm Plant height

Species information

Record quality

  • Images or audio
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  • Confirmed by an expert moderator
  • Nearby sighting(s) of same species
  • GPS evidence of location
  • Description
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