''Caulerpa longifolia'', commonly known as feather caulerpa or long-filament caulerpa, is a species of seaweed in the ''

Caulerpaceae Caulerpaceae is a family of green algae in the order Bryopsidales Bryopsidales is an order of green algae, in the class Ulvophyceae. It is a diverse group of mostly marine macroalgae. Characteristics The thallus is filamentous, highly branch ...

'' family. The seaweed has a coarse

stolon In biology, a stolon ( from Latin ''wikt:stolo, stolō'', genitive ''stolōnis'' – "branch"), also known as a runner, is a horizontal connection between parts of an organism. It may be part of the organism, or of its skeleton. Typically, animal ...

with medium to dark green fronds reaching in height and wide. It has few upright branches that arise from a naked and coarse runner. The ends of the branches (known as ramuli) are linear or curved slightly upwards, usually occurring in five rows along the upright branches. It has a superficial similarity to '' Caulerpa cliftonii''. The species is found in rough coastal waters around rock pools to a depth of . In Western Australia, it is found along the coast from

Shire of Irwin The Shire of Irwin is a Local government areas of Western Australia, local government area in the Mid West (Western Australia), Mid West region of Western Australia, about south of Geraldton, Western Australia, Geraldton and about north of the ...

in the

Mid West The Mid West region is one of the nine regions of Western Australia. It is a sparsely populated region extending from the west coast of Western Australia, about north and south of its administrative centre of Geraldton and inland to east of W ...

and south as far as Rockingham it is also found in

South Australia South Australia (commonly abbreviated as SA) is a States and territories of Australia, state in the southern central part of Australia. With a total land area of , it is the fourth-largest of Australia's states and territories by area, which in ...

Victoria Victoria most commonly refers to: * Queen Victoria (1819–1901), Queen of the United Kingdom and Empress of India * Victoria (state), a state of Australia * Victoria, British Columbia, Canada, a provincial capital * Victoria, Seychelles, the capi ...

and

Tasmania Tasmania (; palawa kani: ''Lutruwita'') is an island States and territories of Australia, state of Australia. It is located to the south of the Mainland Australia, Australian mainland, and is separated from it by the Bass Strait. The sta ...

References

{{Taxonbar, from=Q41804891 longifolia Protists described in 1823