Jointed Twig-rush at Amaroo, ACT
Identification history
| Machaerina articulata | 7 Oct 2021 | MichaelMulvaney | ||
| Machaerina articulata | 6 Oct 2021 | JaneR |
Identify this sighting
Please Login or Register to identify this sighting.
User's notes
Dense, nearly continuous fringe around dam on Ginninderra Creek.
Probably planted.
3 comments
MichaelMulvaney
wrote:
7 Oct 2021
Not sure whether we treat this as a non-local native or translocation of a regionally rare plant?
JaneR
wrote:
7 Oct 2021
Baumea articulata is popular with WQ pond designers, partly because it is a tall rhizomatous clonal evergreen macrophyte that does the job; and partly because it was used as a test species in the early research into effectiveness of planted wetlands (1990s in particular) and some of this work was done in areas where Baumea articulata occurs (Swan Coastal Plain, Adelaide area, coastal NSW and Qld).
In a perfect world, it would be nice to be able to distinguish between CNM sightings of a species that has been planted (whether terrestrial or wetland) for whatever reason (e.g. water quality, ornamental amenity on roadside), and CNM sightings of species that is radiating outwards from a planting (ie self-establishing, becoming weedy). But being consistent on this could be hard, and might be species-dependent.
Ficinia nodosa is an analogous species, in terms of its natural distribution and use in urban wetland plantings. CNM treats that as 'non-local native'. That seems to sum up Baumea articulata, as well.
The category 'translocation' works OK for an actual planting but not so good if that planting starts to spread. ?
In a perfect world, it would be nice to be able to distinguish between CNM sightings of a species that has been planted (whether terrestrial or wetland) for whatever reason (e.g. water quality, ornamental amenity on roadside), and CNM sightings of species that is radiating outwards from a planting (ie self-establishing, becoming weedy). But being consistent on this could be hard, and might be species-dependent.
Ficinia nodosa is an analogous species, in terms of its natural distribution and use in urban wetland plantings. CNM treats that as 'non-local native'. That seems to sum up Baumea articulata, as well.
The category 'translocation' works OK for an actual planting but not so good if that planting starts to spread. ?
Location information
- Coordinates 149.120347-35.167053
- Altitude 622.8m
- Places Amaroo, ACT
Sighting information
- 101 - 1,000 Abundance
- 6 Oct 2021 02:32 PM Recorded on
- JaneR Recorded by
-
Collections
Plants Rushes, Sedges & Mat Rushes JaneR
Additional information
- 1 metre to 5 metres Plant height
Species information
- Machaerina articulata Scientific name
- Jointed Twig-rush Common name
- Not Sensitive
- Non-local native
- Non-invasive or negligible
- Up to 656.01m Recorded at altitude
- Machine learning
-
In flower
- External link More information
-
Synonyms
Baumea articulata
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
