Broad-leaved Cumbumgi at Mount Clear, ACT
Identification history
| Typha orientalis | 24 Mar 2022 | MichaelMulvaney | ||
| Typha orientalis | 23 Mar 2022 | JaneR |
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User's notes
A few plants have established in Naas Creek.
It would be a shame if these established plants spread
3 comments
JaneR
wrote:
24 Mar 2022
Hi Michael
yes, it is a native, but it is an invasive native species. But if you have ever visited a typha swamp, you would be struck by the lack of biodiversity. This species is a very effective competitor. Because it has a robust rhizome and clonal growth, it can form tall dense mono-specific stands that exclude other plants: so it has the potential to lead to displacement and exclusion of small non-woody species.
I think of it as an ecosystem engineer, with potential to ecologically change a wetland system: and it is very resistant to management once established.
Recently (ie this 2022 summer) I have noticed isolated plants in quite a few wetland or swampy places in Namadgi, all young (ie 1-2 years old). Probably colonising following disturbance sequence of drought-fire-floods. It produces huge number of wind-dispersed seeds (little parasols, like a daisy): a few hundred thousand per spike.
Its native yes. But my opinion is that European settlement has helped it to extend its range and spread across landscapes by providing habitats for it to colonise and persist (farms dams; constructed wetlands; suburban lakes; weir pools; some storages).
That's my take !
cheers
jane
yes, it is a native, but it is an invasive native species. But if you have ever visited a typha swamp, you would be struck by the lack of biodiversity. This species is a very effective competitor. Because it has a robust rhizome and clonal growth, it can form tall dense mono-specific stands that exclude other plants: so it has the potential to lead to displacement and exclusion of small non-woody species.
I think of it as an ecosystem engineer, with potential to ecologically change a wetland system: and it is very resistant to management once established.
Recently (ie this 2022 summer) I have noticed isolated plants in quite a few wetland or swampy places in Namadgi, all young (ie 1-2 years old). Probably colonising following disturbance sequence of drought-fire-floods. It produces huge number of wind-dispersed seeds (little parasols, like a daisy): a few hundred thousand per spike.
Its native yes. But my opinion is that European settlement has helped it to extend its range and spread across landscapes by providing habitats for it to colonise and persist (farms dams; constructed wetlands; suburban lakes; weir pools; some storages).
That's my take !
cheers
jane
MichaelMulvaney
wrote:
24 Mar 2022
Thanks Jane
@ACTParks-InvasivePlantsTeam @NathanaelC
This is a thorny one - I wonder whether we should try and keep one of teh Namadgi creek catchments free of Typha
@ACTParks-InvasivePlantsTeam @NathanaelC
This is a thorny one - I wonder whether we should try and keep one of teh Namadgi creek catchments free of Typha
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Nearby sightings
Location information
- Coordinates 148.923997-35.808706
- Altitude 1162.6m
- Maps Namadgi National Park
- Places Mount Clear, ACT
Sighting information
- 1 - 3 Abundance
- 23 Mar 2022 02:40 PM Recorded on
- JaneR Recorded by
-
Collections
Illilanga conservation, rehabilitation & restoration info
Additional information
- 1 metre to 5 metres Plant height
- True In flower
Species information
- Typha orientalis Scientific name
- Broad-leaved Cumbumgi Common name
- Not Sensitive
- Local native
- Non-Invasive
- Up to 1162.59m Recorded at altitude
- Machine learning
-
In flower
- External link More information
-
Ngunnawal language
Gummiuk
Record quality
- Images or audio
- More than one media file
- Confirmed by an expert moderator
- Nearby sighting(s) of same species
- GPS evidence of location
- Description
- Additional attributes
