Codium australasicum

Codium australasicum is a species of seaweed in the Codiaceae family.
The erect dark green thallus typically grows to a height of. It is repeatedly dichotomous and has terete branches.
It is found in sublittoral zones in rough shaded waters up to in depth.
In Western Australia it is found along the coast in two places; near Rockingham, [Western Australia|Rockingham] and Albany. Its range extends around southern Australia, including Tasmania and Tuggerah in New South Wales as well as on the coast of New Zealand.