| Feather caulerpa | |
|---|---|
 | |
Scientific classification  | |
| Clade: | Viridiplantae |
| Division: | Chlorophyta |
| Class: | Ulvophyceae |
| Order: | Bryopsidales |
| Family: | Caulerpaceae |
| Genus: | Caulerpa |
| Species: | C. longifolia |
| Binomial name | |
| Caulerpa longifolia | |
Caulerpa longifolia, commonly known as feather caulerpa or long-filament caulerpa, [1] is a species of seaweed in the Caulerpaceae family. [2]
The seaweed has a coarse stolon with medium to dark green fronds reaching 15 to 65 centimetres (5.9 to 25.6 in) in height and 1 to 3 cm (0.39 to 1.18 in) wide. [2] 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. [1] It has a superficial similarity to Caulerpa cliftonii . [1]
The species is found in rough coastal waters around rock pools to a depth of 40 metres (131 ft). In Western Australia, it is found along the coast from Shire of Irwin in the Mid West and south as far as Rockingham [2] it is also found in South Australia, Victoria and Tasmania.