Fern Caulerpa

Caulerpa flexilis

"Caulerpa flexilis" is a species of seaweed in the "Caulerpaceae" family. The seaweed has a thick stolon with erect dark green primary fronds that are about 5 to 40 centimetres long and 2 to 6 cm wide.
Caulerpa flexilis A species of seaweed ,common around Australian coast. Australia,Caulerpa flexilis,Eamw seaweed,Encounter Bay SA,Geotagged,Winter

Distribution

The species is found around much of the Australian coast as well as in New Zealand. In Western Australia, it is found along the coast in a large area extending from around the Abrolhos Islands in the Mid West, south as far as Esperance in the Goldfields-Esperance region of Western Australia. In New Zealand it is found along the coast of Three Kings Island, the North Island and the northern parts of the South Island.

References:

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Taxonomy
KingdomPlantae
DivisionChlorophyta
ClassUlvophyceae
OrderBryopsidales
FamilyCaulerpaceae
GenusCaulerpa
SpeciesC. flexilis
Photographed in
Australia