Unbranched (rarely branched) alga with five rows of long branchlets (ramuli) tapering upward to tip, arranged in close intervals along the main axis (seen clearest in cross-section). Arises from coarse rhizome (stolon). Medium to dark green. Up to 50 cm long (thallus).
Tropical species related to this seaweed (in the genus Caulerpa) are used for ornamental decoration in household aquariums. Two forms of this alga are recognised Caulerpa longifolia f crispate and Caulerpa longifolia f longifolia.
Tidal pools and subtidal reef on rough water coasts, to depth of 40 m.
New Zealand and southern Australia.
Photosynthetic - sunlight
Recorded in Australia
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed