Marsh Foxtail at Jerangle, NSW
Identification history
| Alopecurus geniculatus | 13 Feb 2024 | natureguy | ||
| Alopecurus geniculatus | 13 Feb 2024 | natureguy | ||
| Deyeuxia sp. | 29 Jan 2024 | Tapirlord | ||
| Unidentified | 29 Jan 2024 | JaneR |
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User's notes
Completely unknown to me. Hopefully someone can build on these details and sort it out:
Habitat: wet soils at edge of small upland creek, silty.
Spike length: 3 to 4 cm,: narrow, 2 mm. Florets circular around rhachis, deciduous, leaving tiny peduncle.
Ligule is triangular, acute, to 4-5 mm long.
Glume: (can't see clearly with hand lens): possibly notched: with awn.
Lamina: up to 70 mm long, x 3 mm wide: linear-lanceolate.
9 comments
JaneR
wrote:
29 Jan 2024
I wondered about Deyeuxia spp but its ligule is described as truncate or obtuse.
Habitat for this grass was a wide open valley, no montane forest or even any trees at all.
Habitat for this grass was a wide open valley, no montane forest or even any trees at all.
MattM
wrote:
31 Jan 2024
The PlantNet description for Deyeuxia carinata is "Leaves with ligule membranous, truncate, ciliate at apex, 5–6 mm long". I think this plant looks good for Deyeuxia.
MattM
wrote:
31 Jan 2024
Sorry Jane. Somehow I interpreted your comment as you showing concern that the ligule is membranous. Was it the glumes or the lemmas that were awned?
JaneR
wrote:
1 Feb 2024
I haven't been successful in pulling a floret apart to see the flower parts clearly, points of attachment. Likely it is the lemma that is awned; but I haven't seen anything that I can confidently say are the glumes.
the overall length of the floret is 2-3 mm.
The edges of (glume or lemma - can't see clearly) are pilose.
The awn is about 3 mm long, angled away from floret (just visible in photo 3).
Although it does look like a Deyeuxia, I am still puzzled by the shape of the ligule which doesn't seem right for Deyeuxia: but shape is not a concern for you ? Second photo shows its length but not its shape.
the overall length of the floret is 2-3 mm.
The edges of (glume or lemma - can't see clearly) are pilose.
The awn is about 3 mm long, angled away from floret (just visible in photo 3).
Although it does look like a Deyeuxia, I am still puzzled by the shape of the ligule which doesn't seem right for Deyeuxia: but shape is not a concern for you ? Second photo shows its length but not its shape.
MattM
wrote:
1 Feb 2024
I'm not familiar enough with Deyeuxia or most high country grasses to comment on the shape. I have samples of a few Deyeuxia so I can have a look later and compare.
JaneR
wrote:
13 Feb 2024
identified from live material as Alopecurus geniculatus at the National Herbarium this morning.
JaneR
wrote:
13 Feb 2024
Yes, disappointing it is an introduced species. Occurrence at this site ( in terms of elevation, region) seems to be a bit unusual. It wasn’t abundant, I noticed just one clump beside the river: more problematic for the river was the extensive dense Rorippa nasturtium-aquatica covering its surface.
Location information
- Coordinates 149.358231-35.860528
- Altitude 1103.2m
- Places Jerangle, NSW
Sighting information
Additional information
- 10cm to 30cm Plant height
- True In flower
Species information
- Alopecurus geniculatus Scientific name
- Marsh Foxtail Common name
- Not Sensitive
- Exotic
- Minor weed or pest
- 1103.15m Recorded at altitude
- Machine learning
-
In flower
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
