The bark of Cabbage Tree Palm, Livistona australis, and probably Kurrajong trees was used to make fishing lines. The bark of the small tree Hibiscus heterophyllus and the small shrubs Pimelia sp. (rice flowers) may also have been used. In addition to bark, fibres from Settler's Flax, Gymnostachys anceps, were used to make fishing line.

The coastal word for fishing line was carrejun or carrahjun and is now used as the common name (Kurrajong) for the tree Brachychiton populneus.

'the [fishing] lines appear to be manufactured from the bark of various trees which we found here of a tough, stringy nature'

Captain John Hunter, 1793

A Feather of the Cassowary (Emu)
A, B: Fish-hooks of New South Wales
Artist: E. Kennien
Engraver: unknown
Published as Plate opp. p 290 in White 1790