There are three species: Sea Club Rush (B. caldwellii formerly Scirpus maritimus), B. medianus, and the marsh Club Rush, or river bulrush (B. Fluviatilis) (Low, 1991).
Aborigines along the Murray River ate the walnut sized tubers of 'belilah' -- probably marsh club rush. The tubers were roasted, pounded and made into cakes (Low, 1991).
All year round.
Young tubers are white and starchy with a sweet, coconut milk flavour (Low, 1991).