Family: Juncaceae (Rush family).
Occurrence: Rare near Castlemaine.
Juncus filcaulis also has very narrow culms but the flowers are clustered into balls. Some southern specimens have wider (2-3mm) culms. All that I have seen locally have narrow culms. The shiny green, arching culms, and the widely separated flowers separate this species from other rushes.
pauciflorus: few flowered.