The second photograph and the third photograph show totally different species, from the first and the fourth photograph. Please remove out of this sighting and add to different sightings, the second photograph and the third photograph .
Then i can provide the identification of this flowering weed from the Iridaceae botanical plants' family .
Fits Sparaxis bulbifera well – though will still check more with other alien Sparaxis taxa from overseas not much recorded in Au, including finding and checking botanical information from the native range of these Sparaxis species.
These two photographs in re-checking the genus i have some previous Vic. experience with, clearly these sighted plants key out really well to this genus *Sparaxis*, in VicFlora here : https://vicflora.rbg.vic.gov.au/flora/key/2111
If we want to test an alternative genus thesis then test genus *Tritonia* to check if this fits and to identify to species . @TapirLord .