Richea sprengelioides
(looks similar to Sprengelia incarnata, particularly when not in flower. R.sprengelioides has circular leaf scars around stem, while S.incarnata will not.)
Based on location and https://www.utas.edu.au/dicotkey/dicotkey/EPACRIDS/sRichea_sprengelioides.htm#:~:text=Richea%20sprengelioides%20is%20a%20common,acerosa.