Sagittaria platyphylla

Sagittaria at Molonglo, ACT

Sagittaria platyphylla at Molonglo, ACT - 26 Jan 2018
Sagittaria platyphylla at Molonglo, ACT - 26 Jan 2018
Sagittaria platyphylla at Molonglo, ACT - 26 Jan 2018
Sagittaria platyphylla at Molonglo, ACT - 26 Jan 2018
Sagittaria platyphylla at Molonglo, ACT - 26 Jan 2018
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Identification history

Sagittaria platyphylla 17 Feb 2020 MichaelMulvaney
Sagittaria platyphylla 17 Feb 2020 michaelb
Alisma plantago-aquatica 30 Jan 2018 BettyDonWood
Alisma plantago-aquatica 30 Jan 2018 MichaelMulvaney
Unidentified 30 Jan 2018 michaelb

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Significant sighting

MichaelMulvaney noted:

17 Feb 2020

This is an american species of very high weed potential - please be on the look out for any further sightings

User's notes

In a drainage ditch on the water's edge at one of the Coombs Ponds.

5 comments

BettyDonWood wrote:
   30 Jan 2018
The other possibilities are Alisma lanceolata, which has lance shaped leaves, and Damasonium minus, the fruits of which are triangular.
JaneR wrote:
   17 Feb 2020
this looks like Sagittaria platyphylla.
michaelb wrote:
   17 Feb 2020
Thanks again Jane.
Sagittaria platyphylla seems more likely. As for the other sighting I had my doubts about the ID of Alisma plantago-aquatica at the time, but didn't know an alternative.
michaelb wrote:
   17 Feb 2020
Thanks for the quick confirmation Michael M. Will keep a lookout for this one.
michaelb wrote:
   3 Mar 2020
See this sighting:
Other Water Plant Sagittaria platyphylla (Sagittaria) on 2 Mar 2020

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  • True In flower
  • 30cm to 1 metre Plant height

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