Tall Spike-rush at Hackett, ACT
Identification history
| Eleocharis sphacelata | 14 Oct 2023 | JaneR |
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Significant sighting
Tapirlord noted:
15 Oct 2023
Uncommonly recorded in the ACT, this is a new location I believe (well for CNM at least).
User's notes
One large clump, and expanding: established sometime in 2022
8 comments
waltraud
wrote:
15 Sep 2024
I recorded Eleocharis sp and Eleocharis acuta at this little dam; perhaps I was wrong with E. acuta?
JaneR
wrote:
15 Sep 2024
Eleocharis sphacelata is Tall Spike rush, and tends to occur in deeper more persistent water than Eleocharis acuta.
Eleocharis acuta is a medium tall spike rush, very common in this region, occurring in shallow water, seasonally flooded areas, and waterlogged ground.
At this dam, these two species occur in different habitats.
Eleocharis sphacelata is a relatively recent arrival at this dam.
Eleocharis acuta is a medium tall spike rush, very common in this region, occurring in shallow water, seasonally flooded areas, and waterlogged ground.
At this dam, these two species occur in different habitats.
Eleocharis sphacelata is a relatively recent arrival at this dam.
abread111
wrote:
14 Oct 2024
Since this dam is now nearly empty, it will be interesting to see if E. sphacelata continues to survive and thrive.
waltraud
wrote:
15 Oct 2024
JaneR
wrote:
15 Oct 2024
yes, the dam was indeed dried out in 2016, and also at other times since then (Jan 2018, spring-midsummer 2019-2020) but that was before this clump of Tall Spikerush Eleocharis sphacelata established.
The dam being dry for a few weeks won't kill off this plant, though may stress the culms a bit if weather is hot (unlikely at the moment). It would take 2-3 years of the dam being completely and continuously dry to desiccate the underground parts.
The dam being dry for a few weeks won't kill off this plant, though may stress the culms a bit if weather is hot (unlikely at the moment). It would take 2-3 years of the dam being completely and continuously dry to desiccate the underground parts.
waltraud
wrote:
16 Oct 2024
and I always hoped that occasional drying keeps the mosquito fish in check ...
Location information
- Coordinates 149.168808-35.241294
- Altitude 642.0m
- Maps Mount Majura
- Places Hackett, ACT
Sighting information
- 1 - 3 Abundance
- 13 Oct 2023 11:18 AM Recorded on
- JaneR Recorded by
-
Collections
Significant sightings Plants Rushes, Sedges & Mat Rushes JaneR
Additional information
- 30cm to 1 metre Plant height
- True In flower
Species information
- Eleocharis sphacelata Scientific name
- Tall Spike-rush Common name
- Not Sensitive
- Rare or uncommon native
- Non-invasive or negligible
- Up to 974.97m Recorded at altitude
- Machine learning
-
In flower
- External link More 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
