Formed of a cluster of sub-parallel filaments or branches (fasciculate) with numerous straight main axes with long straight secondary axes (laterals) arranged in a radial pattern. Apical tips are blunt or enlarged and round. Can have filament-like hairs near tip. Holdfast disc-like (discoid) to lobed with wart-like growths (verrucose). Dark brown. Up to 50 cm long (thallus).
Small caprellid crustaceans, Paraproto tasmaniensis, attach to this alga. Unique organic compounds called phenols have been found in this seaweed. Similar phenols are used as a precursor for materials such as plastics.
Subtidal rocky reef, rough water coasts, to depth of 15 m.
Photosynthetic - sunlight
Native to Australia
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed