is a perennial forming clump 1.5 -2m tall when in flower, dying down in the Winter.
It has creeping rhizomes.
It is found on margins of rivers and estuaries and in drains and swamps, mainly coastal.
Used for wetland revegetation projects
Associated plants found with Bolboschoenus fluviatus
are Taupo orientalis
raupo, and Apodasmia similis