Walsh and Don Foreman authored the first volume of Flora of Victoria,[3] authoring a further two with Timothy Entwisle,[4][5] while for Volume 4 Walsh, Entwisle and Foreman all shared the work.[6]
He has published the name of 112 new species of plants[1] in more than 80 peer-reviewed papers. He has served on the working group (vascular plants) for the Council of Heads of Australasian Herbaria since 2005,[7] and in 2010 served as its taxonomic advisor on the Campanulaceae family.[7] He has also contributed his knowledge of plant communities in the Victorian Alps to the Mountain Invasion Research Network.[8]
^Foreman, Donald B.; Walsh, Neville G. (1993), Flora of Victoria, Inkata Press, ISBN978-0-909605-76-6
^Walsh, N.G.; Entwisle, T.J. (1993), Flora of Victoria: Volume 2 - ferns and allied plants, conifers and monocotyledons, Inkata Press
^Walsh, Neville G.; Entwisle, Timothy J. (1996). Flora of Victoria: Dicotyledons: Winteraceae to Myrtaceae. Vol. 3. Inkata Press.
^Foreman, Donald B.; Walsh, Neville G.; Entwisle, Timothy J. (1999). Flora of Victoria: Dicotyledons: Cornaceae to Asteraceae. Vol. 4. Butterworth-Heinemann.