Acacia pycnantha

Golden Wattle at Queanbeyan West, NSW

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Identification history

Acacia pycnantha	25 Oct 2016	MichaelMulvaney
Acacia pycnantha	10 Oct 2016	BettyDonWood
Acacia penninervis var. penninervis	8 Oct 2016	MichaelMulvaney
Unidentified	5 Oct 2016	Speedsta

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5 comments

MichaelMulvaney wrote:

9 Oct 2016

You have photographed a gall, which is like a cancerous growth on the plant with the extra growth triggered by invasion of a foreign entity such as a fungus, bacteria or larvae stages of wasps or beetles. If this wattle is indeed Acacia penninervis this wattle is regionally uncommon and not previously recorded in the Queanbeyan area.

BettyDonWood wrote:

9 Oct 2016

I think it probably is, but would like to see a photo showing more clearly the vein between the gland and the base of the lesf. This is diagnostic. For an imoortant record like this it pays to be certain.

Speedsta wrote:

10 Oct 2016

So to confirm, you need a closer photo of the base of the gall?
And a closer photo of the vein of the leaf?

BettyDonWood wrote:

10 Oct 2016

I have actually confirmed it, after checking my photo of it from Black Mountain. To be absolutely sure, a close up of a leaf showing the gland on the edge would be great. Don't worry about the gall. Woody galls basically all look the same.

BettyDonWood wrote:

11 Oct 2016

I suddenly realised it was more likely to be Acacia pycnantha, which has much broader leaves than Acacia penninervis. It is quite common on Mt Jerrabombera, at least.

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