I don't think so. The petals are far too small (at least 13 mm long in Silene latifolia) and are not deeply bifid. The calyx does not appear to be 10 veined and is far too small also. https://vicflora.rbg.vic.gov.au/flora/taxon/3f84cf67-ac3f-475a-a880-7c5a35bc3109