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Other Water PlantMyriophyllum sp.

1 A water-milfoil at Amaroo, ACT

3 images

Myriophyllum sp. at Amaroo, ACT - 11 Jun 2019
Myriophyllum sp. at Amaroo, ACT - 11 Jun 2019
Myriophyllum sp. at Amaroo, ACT - 11 Jun 2019

Identification history

Other Water Plant Myriophyllum sp. 17 Jun 2019 MichaelMulvaney
Other Water Plant Myriophyllum aquaticum 11 Jun 2019 MichaelMulvaney

Author's notes

In dam within Throsby Neck Goorrooyaroo N.R


   11 Jun 2019
Not sure about this one. All leaves appear to be pinnate, in whorls of 6, which suggests M. aquifolium, but the pinnate segments are in 12 pairs which suggests M. cripsatum. As this is a major weed would appreciate another opinion.
   15 Jun 2019
The Vicflora key says that M. aquaticum has pectinate leaves (segments arranged like the teeth of a comb). Unfortunately with that key I cannot ID it to anything sensible.
   17 Jun 2019
Steve Taylor - Invasive plants officer said
Hi Michael
The Vicflora key is best for aquatics like this:
It keys out to a native Myriophllyum because:
Not glaucous
Less than 18 pinnae

Parrot’s feather is distinctively blue-green and pinnae are crowded and thus feather like in appearance.

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Location information

Species information

  • Not Sensitive
  • Local Native
  • Non-Invasive

Sighting information

  • 101 - 1,000 Abundance
  • 11 Jun 2019 9:30 AM Recorded on
  • MichaelMulvaney Recorded by
  • Website Reported via
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