Plants
Grasses
Sighting 4499953

Poa labillardierei

Common Tussock Grass, River Tussock Grass at Watson, ACT

Poa labillardierei at Watson, ACT - 7 Jul 2023 04:00 PM
Poa labillardierei at Watson, ACT - 7 Jul 2023 04:00 PM
Poa labillardierei at Watson, ACT - 7 Jul 2023 04:00 PM
Poa labillardierei at Watson, ACT - 7 Jul 2023 04:00 PM
Poa labillardierei at Watson, ACT - 7 Jul 2023 04:00 PM
Poa labillardierei at Watson, ACT - 7 Jul 2023 04:00 PM
Request use of media

Identification history

Poa labillardierei 8 Jul 2023 MichaelBedingfield
Poa labillardierei 8 Jul 2023 Tapirlord
Poa (genus) 7 Jul 2023 abread111

Identify this sighting

Please Login or Register to identify this sighting.

User's notes

2 large tussocks in the vicinity

8 comments

waltraud wrote:
   8 Jul 2023
What a strange location for P. lab; is it in a drainage line? I have not seen any on Mt Majura apart from those we planted in the water course gully right at the bottom before the water disappears into the storm water system.
Ive seen a quite a bit of P sieberiana though on southern aspect close to the iron bridge over Casuarina trail and at a seepage site close to Blue Metal Road - those close to BMR disappeared during drought and overgrazing. I found some of the P sieb are quite big with foliage at knee height.
abread111 wrote:
   8 Jul 2023
Not in a drainage line, but probably quite damp none the less. The surrounding plants seemed to be willowherb, which likes dampness. I'll have to look up the distinction between the two species you mention.
waltraud wrote:
   15 Sep 2023
I doubt P. lab and suggest to collect sample when possible. there are known sites on Mt Majura's west slope with naturally occurring Poa sieberiana; these are at moist seepage, drainage lines and on south aspects.
abread111 wrote:
   15 Sep 2023
Ok, I'll try to get a sample sometime soon when I guess it may be heading...
Tapirlord wrote:
   15 Sep 2023
When and if a sample is collected, please add it as a additional sighting. I am unwilling to change the ID on a sighting based on a sample collected after the fact given the uncertainty as to whether you have collected the same individual. We have had this discussion before.
waltraud wrote:
   15 Sep 2023
Okay understood Ciaran, thanks.
Barb I checked a number of Poa lap sites, which seem to planted such as https://canberra.naturemapr.org/sightings/4430380.
I think we can exclude that anyone planted in that Mt majura location.
When we did the woody weed work, Alex pointed out a site with native plant species typical for wet areas that looked like a couple of areas on mt Majuras west slope where we saw thin water film moving over the landscape. Definitely worth to return for a closer look.
isobellcrawford wrote:
   12 Feb 2024
Keys to Poa labillardierei var. labillardierei. Relaxed blade to 1.3 mm wide.
spikelet to 2.85 mm long;
lower glume 1.5–1.6 mm long, 1-n;
upper gl. 1.6–1.8 mm long;
lemma 2.05–2.3 mm long, with webbing concentrated on base, and on margins and nerves basally; palea 1.9 mm long, nerves shortly ciliolate/scabrous.
palea
waltraud wrote:
   12 Feb 2024
Many thanks Isobel, this is great; to my knowledge the first observation of this species on Mt Majura (apart from those we planted in the drainage line from the lower Hackett reservoir).

Please Login or Register to comment.

Location information

Sighting information

Additional information

  • 30cm to 1 metre Plant height

Species information

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
833,212 sightings of 22,974 species from 14,457 members
CCA 3.0 | privacy
NatureMapr is developed by at3am IT Pty Ltd and is proudly Australian made