Alternanthera philoxeroides

Alligator Weed at Melba, ACT

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Identification history

	Alternanthera philoxeroides	9 Jan 2025	JaneR
	Alternanthera philoxeroides	9 Jan 2025	pinnaCLE

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User's notes

This location, the re-engineered creek bed under the Belconnen trunk-sewer works, was herbicided in both April and Nov 2024. Masses of plants have regrown in 3 places. Possibly many more are growing in other parts of the creek reach here? Needs a rethink on the way to control?

1 comment

JaneR wrote:

9 Jan 2025

thanks for the observations and sighting. Alligator Weed is notoriously difficult to control.

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Location information

Coordinates 149.050590 -35.218886
Places Melba, ACT

Sighting information

16 - 100 Abundance
8 Jan 2025 02:43 PM Recorded on
pinnaCLE Recorded by
Collections
pinnaCLE NatureMapr Canberra & Southern Tablelands Other Fresh Water Plants Plants

Additional information

10cm to 30cm Plant height
True In flower

Species information

Alternanthera philoxeroides Scientific name
Alligator Weed Common name
Not Sensitive
Exotic
Major weed or pest
Up to 630m Recorded at altitude
Machine learning
In flower
External link More information

Record quality

Images or audio
More than one media file
Verified by an expert moderator
Nearby sighting(s) of same species
GPS evidence of location
Description
Additional attributes

Australian Capital Territory

New South Wales

Queensland

Northern Territory

Western Australia

South Australia

Victoria

Tasmania