Poa labillardierei
Common Tussock Grass, River Tussock Grass at Watson, ACT
Identify this sighting
| Poa labillardierei | MichaelBedingfield | 8 Jul 2023 | |
| Poa labillardierei | Tapirlord | 8 Jul 2023 | |
| Poa (genus) | abread111 | 7 Jul 2023 |
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User's notes
2 large tussocks in the vicinity
8 comments
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.
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.
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.
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.
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.
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.
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.
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
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
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).
Location information
- Coordinates 149.174310-35.234086
- Altitude 702.0m
- Places Watson, ACT
Sighting information
- 2 Abundance
- 7 Jul 2023 04:00 PM Recorded on
- abread111 Recorded by
- 30cm to 1 metre Plant height
Collections
Species information
- Poa labillardierei Scientific name
- Common Tussock Grass, River Tussock Grass Common name
- Not Sensitive
- Local native
- Non-invasive or negligible
- Up to 1504.26m Recorded at altitude
- External link More information
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Synonyms
Poa labillardieri
Record quality
Quality score
7 / 7
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