One to several flattened stems (stipes) arising from holdfast. Branching in a tree-like (arborescent) pattern mostly on one plane. Secondary branches are ribbon-like with thickened vein-like midlines. Numerous secondary branches usually distributed evenly in groups of two or more. Lateral blades have fan-shaped (flabellate) ends. Obvious pale circular lumps (conceptacles) on blade surface when reproductive. Pink to dull red. Up to 23 cm long (thallus).
This coralline alga has an obvious pale crusting on its surface that gives it a coral-like appearance. Pycnogonids such as Ammothea species and other invertebrates associate with this alga.
Tidal pools, subtidal reefs, sheltered and open coasts, to depth of 48 m.
Photosynthetic - sunlight
Recorded in Australia
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed