Senecio madagascariensis

Madagascan Fireweed, Fireweed at Watson, ACT

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Identification history

Senecio madagascariensis	12 Nov 2020	waltraud
Senecio madagascariensis	11 Nov 2020	waltraud
Unidentified	9 Nov 2020	waltraud

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User's notes

A single plant.

11 comments

waltraud wrote:

10 Nov 2020

I hope I'm wrong with the id.
w

Mike wrote:

10 Nov 2020

You need to suggest something or the weeds people won't be alerted. I can't see details of the bracts but if there are 19-21 bracts and 13-15 petals and you suggest Madagascan fireweed someone will take a look and remove it.

Mike wrote:

11 Nov 2020

It doesn't look quite the same as the unidentified yellow daisy Senecio pinnatifolius var. pinnatifolius - the leaves are different.

waltraud wrote:

11 Nov 2020

I agree Mike, they are different.
After more internet research I'm now pretty sure it is Senecio madagascariensis.
I searched the area but couldn't find more (flowering) specimen.

waltraud wrote:

12 Nov 2020

Species id confirmed by Mulvaney and Taylor. I removed & disposed of the specimen and checked immediate surrounds for more - I could not find more however non-flowering seedlings might be present.

MichaelMulvaney wrote:

30 Nov 2020

Thanks Waltraud - there seems to be plants appearing in north Canberra. I wonder what the source is?

waltraud wrote:

30 Nov 2020

no idea Michael also I.m not sure how far the seeds blow...

Mike wrote:

30 Nov 2020

I thought it came from landscaping in Crace and despite major efforts to control it the plants have travelled along the tramline. It would easily blow over from Nortbourne Avenue.

waltraud wrote:

30 Nov 2020

Couple of CNM records of the species for Mul flat but not Gungahlin subs.

Mike wrote:

30 Nov 2020

Major infestation occurred before CNM. See https://www.cmtedd.act.gov.au/open_government/inform/act_government_media_releases/tamsd/2012/09/madagascan_fireweed_alert and https://www.cmtedd.act.gov.au/open_government/inform/act_government_media_releases/tamsd/2015/canberrans-urged-to-report-madagascan-fireweed.

waltraud wrote:

1 Dec 2020

thanks Mike you are such a good source of info :)

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