The toothed leavesanc shape of the bud/spent flower suggest Hypochaeris radicata. https://apps.lucidcentral.org/plants_se_nsw/text/entities/hypochaeris_radicata.htm The teeth on Taraxacum leaves more angled backwards.
I did not notice the Euchiton till just now. It is much better if there is only one species per photo. If you do not have software that can crop photos, perhaps delete this sighting and put up two new ones, one for each plant.
When I confirmed the Euchiton the Timeline showed we had a duplicate sighting. This is the same photo as for: https://canberra.naturemapr.org/Community/Sightings/Details/3871532 So I confirmed the Hypochaeris radicata.
Hi Toni You can look at the Nearby Sightings to check for duplicates, se below. You should also be able to use you own profile for checking. Click on your username and you get all your 103 sightings with images: https://canberra.naturemapr.org/Community/Author/19739 Then click on the icon for a list view and you get all 104 sightings: https://canberra.naturemapr.org/Community/Author/19739?ViewMode=Detail You can also look at the Black Flat at Corrowong field guide: https://canberra.naturemapr.org/Community/LocationGuide/7237