Austrostipa bigeniculata

Kneed Speargrass at Downer, ACT

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Identification history

	Austrostipa bigeniculata	10 Jan 2021	waltraud
	Nassella neesiana	1 Jan 2021	waltraud

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User's notes

Scans show 1. seed head and seeds; 2. leaves and stem. Leaves enrolled, ripped, coarsely haired. Most plants were over 1m tall (seed heads) and this particular specimen (which i collected for id) was as tall as me (162 cm). The coordinates are estimates only. If it turns out to be CNG, I will return and hopefully find it again and remove as much as I can (some plants have already shed seeds). I could not see the corona where the awn joins the seed. I wonder whether this could be Austrostipa? bigeniculata? or rudis? (awns bent twice in dry seed, , 6cm long, upper glume >1cm long).

2 comments

MichaelBedingfield wrote:

9 Jan 2021

Hi Waltraud
This looks more like Austrostipa bigeniculata than CNG. However, to be sure, have a close look at the seeds. Note the little circle around the top of the seed on CNG, see images on:-
Psychrophila introloba

waltraud wrote:

10 Jan 2021

Many thanks Michael; I agree: Austrostipa bigeniculata.

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Location information

Coordinates 149.178637 -35.252193
Places Downer, ACT

Sighting information

4 - 15 Abundance
1 Jan 2021 06:37 PM Recorded on
waltraud Recorded by
Collections
waltraud Canberra & Southern Tablelands NatureMapr Austrostipa bigeniculata Grasses Plants

Additional information

1 metre to 5 metres 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
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