About Caulerpa serrulata (Forssk.) J.Agardh
This species of seaweed, Caulerpa serrulata, has a green to grey-green thallus that typically grows outward to around 30 centimetres (11.8 inches). It produces small blades with serrated edges that grow upward from long, cylindrical runners anchored to a substrate. The blades are often forked, and less frequently twisted. Each blade grows to around 3 centimetres (1.2 inches) long. Blades are light to medium mint green in colour, and frequently have bluish tints. This species occurs in intertidal and subtidal zones of tropical waters. It grows on shallow rocky surfaces, often with a covering of shallow sand in sheltered environments, and can grow to a depth of around 5 metres (16 ft). It is found in the Caribbean, in areas including south Florida and around the Bahamas. In Western Australia, it occurs along the coast from the Kimberley region extending south to the Gascoyne. It is also found around India, Singapore, other parts of Southeast Asia, and the east coast of Africa. This seaweed is reported to be edible. It is used in medicine to lower blood pressure, and as an antibacterial and antifungal agent.
