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Typha sp.

Cumbungi at Gungahlin, ACT

Typha sp. at Gungahlin, ACT - 18 Feb 2021
Typha sp. at Gungahlin, ACT - 18 Feb 2021
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Identification history

Typha sp. 22 Feb 2021 michaelb
Typha sp. 21 Feb 2021 michaelb
Vallisneria australis 20 Feb 2021 TrishGungahlin

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User's notes

There are a few 'islands' composed of this weed in Yerrabi Pond which seems to form a solid surface for birds to sit and sleep on. They have appeared since the heavy rain a few weeks ago. Is it ribbon weed?

7 comments

JaneR wrote:
   21 Feb 2021
Water plants often have the name 'weed' like this one, ribbon weed, when in fact they are native plants and not a weed in the sense that we usually use the word.

the photograph of the plant is not really good enough to do an ID on, but the strappy nature of the leaves is pretty distinctive when the photograph is magnified, so the identification for Vallisneria australis is accepted.

These 'islands' are possibly - just possibly - subsurface mounds where the plant is growing. This will become evident if water level falls a bit. These plants will not survive out of water, so the leaves will die off completely if exposed. (and re-grow under right conditions)
JaneR wrote:
   21 Feb 2021
Another thought: the islands could be accumulations of broken-off leaves:. Waves, such as caused by high winds, can break off the long leaves; which then get rolled together in the water, and dumped: strandlines of dead leaves often on down-wind shores of Lake BG. If these islands are broken-off leaves, then they will decompose, pretty quickly, but lots of insects.
michaelb wrote:
   21 Feb 2021
Sometimes the rangers trim Typha growth on the edges of the lakes. Perhaps this the left over debris of such an activity. The leaves look unusually clean for Vallisneria australis, which often accumulates underwater muck.
JaneR wrote:
   21 Feb 2021
I wasn't aware of the Rangers' activities.
The leaves don't look stiff enough for Typha, but its true that they are free of an epiphyte load (or 'muck'). A close up photo would be a help.
Michael, if you are confident that this is cut Typha leaves, then it needs to be changed: otherwise, maybe it should be changed to 'inconclusive' ?
michaelb wrote:
   21 Feb 2021
Jane, I've done an "Undo" of your confirmation. We'll see what Michael M thinks.
michaelb wrote:
   22 Feb 2021
I am able to view a close up of the original photos. After careful thought I feel confident this is Typha sp.
JaneR wrote:
   22 Feb 2021
Good, nice to have confidence and resolution.

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Nearby sightings

Page 1 of 1 - image sightings only 23 0 23

Hirundo neoxena (Welcome Swallow) at Gungahlin, ACT - 31 Dec 2021 by TrishGungahlin Pelecanus conspicillatus (Australian Pelican) at Gungahlin, ACT - 14 Aug 2021 by TrishGungahlin Aythya australis (Hardhead) at Gungahlin, ACT - 14 Mar 2021 by TrishGungahlin Carassius auratus (Goldfish) at Gungahlin, ACT - 6 Feb 2021 by TrishGungahlin Anas superciliosa (Pacific Black Duck) at Gungahlin, ACT - 23 Oct 2020 by TrishGungahlin Hirundo neoxena (Welcome Swallow) at Gungahlin, ACT - 21 Oct 2020 by TrishGungahlin Hirundo neoxena (Welcome Swallow) at Gungahlin, ACT - 20 Oct 2020 by TrishGungahlin Hirundo neoxena (Welcome Swallow) at Gungahlin, ACT - 20 Oct 2020 by TrishGungahlin Hirundo neoxena (Welcome Swallow) at Gungahlin, ACT - 20 Oct 2020 by TrishGungahlin Porphyrio melanotus (Australasian Swamphen) at Gungahlin, ACT - 11 Oct 2020 by TrishGungahlin Cygnus atratus (Black Swan) at Gungahlin, ACT - 4 Feb 2020 by AlisonMilton Microcarbo melanoleucos (Little Pied Cormorant) at Gungahlin, ACT - 4 Feb 2020 by Alison Milton Tachybaptus novaehollandiae (Australasian Grebe) at Gungahlin, ACT - 26 Nov 2018 by Alison Milton Cygnus atratus (Black Swan) at Gungahlin, ACT - 26 Nov 2018 by AlisonMilton Hirundo neoxena (Welcome Swallow) at Gungahlin, ACT - 26 Nov 2018 by Alison Milton Grallina cyanoleuca (Magpie-lark) at Gungahlin, ACT - 26 Nov 2018 by Alison Milton Aythya australis (Hardhead) at Gungahlin, ACT - 17 Aug 2018 by AlisonMilton Cygnus atratus (Black Swan) at Gungahlin, ACT - 17 Aug 2018 by AlisonMilton Pelecanus conspicillatus (Australian Pelican) at Gungahlin, ACT - 2 Mar 2018 by Alison Milton Microcarbo melanoleucos (Little Pied Cormorant) at Gungahlin, ACT - 2 Mar 2018 by Alison Milton Diplacodes haematodes (Scarlet Percher) at Gungahlin, ACT - 2 Mar 2018 by Alison Milton Microcarbo melanoleucos (Little Pied Cormorant) at Gungahlin, ACT - 27 Jul 2017 by Alison Milton Anas superciliosa (Pacific Black Duck) at Gungahlin, ACT - 11 Jun 2017 by SallyandPeter
Hirundo neoxena (Welcome Swallow) at Gungahlin, ACT - 31 Dec 2021 by TrishGungahlin
Pelecanus conspicillatus (Australian Pelican) at Gungahlin, ACT - 14 Aug 2021 by TrishGungahlin
Aythya australis (Hardhead) at Gungahlin, ACT - 14 Mar 2021 by TrishGungahlin
Carassius auratus (Goldfish) at Gungahlin, ACT - 6 Feb 2021 by TrishGungahlin
Anas superciliosa (Pacific Black Duck) at Gungahlin, ACT - 23 Oct 2020 by TrishGungahlin
Hirundo neoxena (Welcome Swallow) at Gungahlin, ACT - 21 Oct 2020 by TrishGungahlin
Hirundo neoxena (Welcome Swallow) at Gungahlin, ACT - 20 Oct 2020 by TrishGungahlin
Hirundo neoxena (Welcome Swallow) at Gungahlin, ACT - 20 Oct 2020 by TrishGungahlin
Hirundo neoxena (Welcome Swallow) at Gungahlin, ACT - 20 Oct 2020 by TrishGungahlin
Porphyrio melanotus (Australasian Swamphen) at Gungahlin, ACT - 11 Oct 2020 by TrishGungahlin
Cygnus atratus (Black Swan) at Gungahlin, ACT - 4 Feb 2020 by AlisonMilton
Microcarbo melanoleucos (Little Pied Cormorant) at Gungahlin, ACT - 4 Feb 2020 by Alison Milton
Tachybaptus novaehollandiae (Australasian Grebe) at Gungahlin, ACT - 26 Nov 2018 by Alison Milton
Cygnus atratus (Black Swan) at Gungahlin, ACT - 26 Nov 2018 by AlisonMilton
Hirundo neoxena (Welcome Swallow) at Gungahlin, ACT - 26 Nov 2018 by Alison Milton
Grallina cyanoleuca (Magpie-lark) at Gungahlin, ACT - 26 Nov 2018 by Alison Milton
Aythya australis (Hardhead) at Gungahlin, ACT - 17 Aug 2018 by AlisonMilton
Cygnus atratus (Black Swan) at Gungahlin, ACT - 17 Aug 2018 by AlisonMilton
Pelecanus conspicillatus (Australian Pelican) at Gungahlin, ACT - 2 Mar 2018 by Alison Milton
Microcarbo melanoleucos (Little Pied Cormorant) at Gungahlin, ACT - 2 Mar 2018 by Alison Milton
Diplacodes haematodes (Scarlet Percher) at Gungahlin, ACT - 2 Mar 2018 by Alison Milton
Microcarbo melanoleucos (Little Pied Cormorant) at Gungahlin, ACT - 27 Jul 2017 by Alison Milton
Anas superciliosa (Pacific Black Duck) at Gungahlin, ACT - 11 Jun 2017 by SallyandPeter

Location information

Species information

  • Not Sensitive
  • Local Native
  • Non-Invasive

Sighting information

  • 1 Abundance
  • 18 Feb 2021 12:16 PM Recorded on
  • TrishGungahlin Recorded by

Additional information

  • 1 metre to 5 metres Plant height

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
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