Caulerpa hedleyi

Caulerpa hedleyi is a species of seaweed in the "Caulerpaceae" family.
The seaweed has a robust stolon with erect grey-green fronds reaching in height and wide.
The species is found in deep heavily shaded waters. In Western Australia, it is found along the coast from Rottnest Island and south as far as Esperance in the Goldfields-Esperance region of Western Australia and east to South Australia.