Bidens subalternans

Greater Beggars Ticks at Isaacs, ACT

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Identification history

Bidens subalternans	27 Mar 2019	BettyDonWood
Bidens subalternans	27 Mar 2019	BettyDonWood
Unidentified	27 Mar 2019	Mike

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Significant sighting

MichaelMulvaney noted:

28 Mar 2019

Only second recorded location of this weed in the ACT

User's notes

Dense patch near road and other plants spreading.

4 comments

BettyDonWood wrote:

27 Mar 2019

https://apps.lucidcentral.org/plants_se_nsw/text/entities/bidens_subalternans.htm
Late draft fact sheet from my app

Mike wrote:

28 Mar 2019

A new one for me. I was actually looking for Bidens pilosa (which I knew to be along Long Gully Road). I have now removed 98 plants of B. subalternans and 5 B.pilosa.

MichaelMulvaney wrote:

29 Mar 2019

Thanks Mike I think I have been removing it thinking that it was the other Bidens. I think the only other ACT record is a 2014 record near the junction of the Molonglo and Murrumbidgee.

Mike wrote:

29 Mar 2019

The leaves are quite different when you compare the two - see https://canberra.naturemapr.org/Community/Sightings/Details/4188265. I found the plants a few weeks ago but waited for flowers so they could be identified. They are included in the ACT weeds list on Collector so might be more common than you think.

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