Plocamium angustum
- kingdom: Plantae
- phylum: Rhodophyta
- class: Florideophyceae
- order: Plocamiales
- family: Plocamiaceae
- genus: Plocamium
- species: Plocamium angustum
- Victor Harbor
South Australia- East Fremantle
- Fremantle
- North Fremantle
Western Australia
Australia- Ebene
Plaines Wilhems
Mauritius- Kaikoura
Canterbury
New Zealand