Myriophyllum sp.

Water-milfoil at QPRC LGA

Myriophyllum sp. at QPRC LGA - 1 Jan 2024
Myriophyllum sp. at QPRC LGA - 1 Jan 2024
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Identification history

Myriophyllum sp. 14 Jan 2024 JaneR
Myriophyllum sp. 3 Jan 2024 JaneR

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User's notes

Growing in shallow (15 cm) water. Species ID unresolved: ambiguous - Plants have characteristics that (individually) are associated with M. variifolium (glabrous stem, leaves per whorl), M. crispatum (leaf length) and M. simulans (glabrous stem, colour of styles, colour shape mericarps).

2 comments

RogerF wrote:
   3 Jan 2024
Do Myriophyllum spp hybridise?
JaneR wrote:
   3 Jan 2024
I don't know enough about them to say Yes or No or Maybe.
the treatment of Myriophyllum by Orchard is sprinkled with caveats about the challenge in distinguishing between certain species, and especially the need for mature fruits, and their surface ornamentation. For many water plants, vegetative characteristics are fairly plastic, and so species tend to overlap (eg whorl number). Although flowering, these are young plants, having grown in last 3 weeks in response to November-December rain (no milfoils observed 3 weeks ago). Previous surveys records (via ALA) have recorded "Myriophyllum sp.". Am hopeful that species ID will be clearer later in summer.

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Nearby sightings

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Location information

Sighting information

  • 16 - 100 Abundance
  • 1 Jan 2024 12:35 PM Recorded on
  • JaneR Recorded by

Additional information

  • 10cm to 30cm Plant height
  • True In flower

Species information

  • Myriophyllum sp. Scientific name
  • Water-milfoil Common name
  • Not Sensitive
  • Local native
  • Non-Invasive
  • Up to 1633.08m Recorded at altitude
  • Machine learning
  • In flower

Record quality

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  • Confirmed by an expert moderator
  • Nearby sighting(s) of same species
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  • Description
  • Additional attributes
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