Gold, HNF.
There are 2 subspecies, only the nominate subspecies naturalised in Victoria. See J. inflexus subsp. inflexus profile for description.
Albrecht, D.E. (1994). Juncus. In: Walsh, N.G.; Entwisle, T.J., Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons, pp. 197–233. Inkata Press, Melbourne.