Pontederia cordata

Pickerel Weed at Yarralumla, ACT

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Identification history

	Pontederia cordata	4 Apr 2021	MichaelMulvaney
	Pontederia cordata	4 Apr 2021	JaneR

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Significant sighting

MichaelMulvaney noted:

4 Apr 2021

First naturalised record of this invasive species in the Canberra region. While not reported as a fast spreader it can form large clumps. Cultifated at the Weston Horticultural College, which makes me think just what were they teaching their students

User's notes

Dense clump growing in ponded water, relatively shallow, of Stirling Creek, shortly after coming out of suburban area. Flowers attractive light purple, visited by honey bees. Identified as Pontederia cordata after sleuthing through books and the web. this is a new species for me, needs to be confirmed by others. Height estimated to be around 1 m Unlikely that canopy will survive a frosty winter, but rhizomes in mud might well. I have walked this area before but not for a while, and suspect this is newly established this season.

1 comment

jpittock wrote:

4 Apr 2021

Thanks Michael. The clump has been there for at least a year. I've been considering digging it out.
Jamie Pittock

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Location information

Coordinates 149.115004 -35.302315
Altitude 574.1m
Maps Stirling Park
Places Yarralumla, ACT

Sighting information

1 - 3 Abundance
4 Apr 2021 02:20 PM Recorded on
JaneR Recorded by
Collections
My flagged sightings Significant sightings Plants Other Fresh Water Plants JaneR

Additional information

1 metre to 5 metres Plant height
True In flower

Species information

Pontederia cordata Scientific name
Pickerel Weed Common name
Not Sensitive
Exotic
Medium weed or pest
566.52m to 829m Recorded at altitude
Machine learning
In flower
External link More information

Record quality

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Nearby sighting(s) of same species
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Description
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