Austrostipa bigeniculata

Kneed Speargrass at Stromlo, ACT

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Identification history

Austrostipa bigeniculata	2 Jan 2023	Tapirlord
Nassella neesiana	30 Dec 2022	Tapirlord
Unidentified	30 Dec 2022	JimL

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User's notes

This stood out as different in that immediate area to other grasses.

7 comments

JimL wrote:

30 Dec 2022

Oh!
Thanks @Tapirlord
Wish I had of pulled it out then.

MattM wrote:

31 Dec 2022

The drooping inflorescence radiating from a single, erect stem makes me think of Austrostipa bigeniculata. Additionally the leaves appear to lack the short hairs characteristic of Chilean needlegrass, but the camera might not have picked up that detail if present.

JimL wrote:

1 Jan 2023

@MattM - more than happy to go for another walk and take a better camera to pick up on this. Having a look at the many reference photos across CNM, I know know what you mean by the short hairs. Don't recall seeing any, but can go back in coming days and get that reference photo for surety.
Cheers,
Jim

Mike wrote:

1 Jan 2023

Pull one of the seeds off. If it is Chilean needlegrass it will have a corona between the seed and the awn as shown in https://canberra.naturemapr.org/sightings/3366054. Austrostipa bigeniculata does not have this.

MichaelBedingfield wrote:

2 Jan 2023

Agree with MattM & Mike

brunonia wrote:

2 Jan 2023

Looks like A. bigeniculata to me.

Tapirlord wrote:

2 Jan 2023

Thanks everyone, much appreciated.

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Location information

Coordinates 149.024108 -35.323119
Altitude 592.7m
Places Stromlo, ACT

Sighting information

4 - 15 Abundance
21 Dec 2022 05:49 PM Recorded on
JimL Recorded by
Collections
Plants Grasses JimL Canberra & Southern Tablelands NatureMapr

Additional information

30cm to 1 metre Plant height

Species information

Austrostipa bigeniculata Scientific name
Kneed Speargrass Common name
Not Sensitive
Local native
Non-invasive or negligible
Up to 1074.7m Recorded at altitude
117 images trained Machine learning
In flower
External link More information
Synonyms
Stipa bigeniculata

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