Bidens subalternans

Greater Beggars Ticks at Theodore, ACT

Bidens subalternans at Theodore, ACT - 28 Mar 2020
Request use of media

Identification history

Bidens subalternans 28 Mar 2020 MichaelMulvaney
Bidens subalternans 28 Mar 2020 VeraKurz

Identify this sighting


Please Login or Register to identify this sighting.

Significant sighting

michaelb noted:

26 Apr 2023

This is a troublesome weed. A patch of this size is worth a significant invasion.

User's notes

This patch of more than a hectare now flowering

3 comments

michaelb wrote:
   29 Mar 2020
Thanks Vera
That is a big job to deal with them!
VeraKurz wrote:
   30 Mar 2020
Yes, it is much bigger than I at first thought. I think in current environment will be virtually impossible to get on top of it.
michaelb wrote:
   31 Mar 2020
Yes, we have a large problem here. Advice from the relevant Park Ranger would be useful.

Please Login or Register to comment.

Nearby sightings

Page 1 of 1 - image sightings only

Location information

Sighting information

  • > 10,001 Abundance
  • 28 Mar 2020 05:33 PM Recorded on
  • VeraKurz Recorded by

Additional information

  • True In flower
  • 30cm to 1 metre Plant height

Species information

Record quality

  • Images or audio
  • More than one media file
  • Confirmed by an expert moderator
  • Nearby sighting(s) of same species
  • GPS evidence of location
  • Description
  • Additional attributes
2,152,742 sightings of 19,933 species in 6,473 locations from 11,401 contributors
CCA 3.0 | privacy
We acknowledge the Traditional Owners of this land and acknowledge their continuing connection to their culture. We pay our respects to their Elders past and present.