Broad, flattened fronds branching in an even fork (dichotomous) pattern. Tips (apices) of fronds rounded through to abruptly ending in a straight point (apiculate). Spots (sporangia) occur in a scattered pattern often in patches across the fronds. Holdfast root-like (rhizoidal). Iridescent blue (underwater), medium brown. Up to 20 cm long (thallus).
This seaweed is sometimes referred to as 'doubling weed' in reference to its evenly divided branching. It is thought to have potential medicinal use as anti-inflammatory.
Tidal pools, shallow subtidal reef, to depth of 21 m.
Photosynthetic - sunlight
Recorded in Australia
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed