General Description

Colony of individual polyps (hydranths) joined by root-like network of tubular stolons at the base. Colony shape is feather-like (pinnate). Colour: colonies yellowish to greenish-brown, colour often grading from the base to tip of stem, gonothecae creamy white. Up to 10 cm high.


This is one of the most spectacular and graceful hydroids in southern Australia. Their colonies are present most of year, and become fertile in summer.


Southern Australia (Western Australia, South Australia, Victoria).


Subtidal, on rocky substrates such as oceanic reefs.

More Information