Yam daisies used to cover the Victorian Volcanic Plains but now they are seen less often. The species has edible tuberous roots and was once an important source of food for aboriginal people. The introduction of sheep and goats by Europeans had led to the near extinction of the yam daisy. It is also referred to by the common name of Murnong.
The leaves are just starting to appear now soon to be followed by the yellow daisy flowers. Many people have difficulty in telling the difference between flatweeds and yam daisies. The link below may be helpful. Flat weeds are very common in a range of vegetation communities.
This link has a useful key to assist with identification http://vro.dpi.vic.gov.au/dpi/vro/vrosite.nsf/pages/sip_salt_native_yam