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Service Notice

The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s flora taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not currently being reflected in Florabase, herbarium collections, or the census. The Herbarium team, working with the Biodiversity Information Office, now have the Nomos-hosted WACensus in production, and we will begin to update the flora and fungi for WA within the system soon. The Specify project team continues to test and streamline the new collections management system, and we expect this to be online in October. Please reach out to us if you have any questions or concerns.

The notice period started at 9:45 am on Friday, 12 December 2025 +08:00 and will end at 12:00 pm on Thursday, 1 October 2026 +08:00.

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Caulerpa racemosa (Forssk.) J.Agardh

Reference
Algern.Syst. 35 (1873)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus green, spreading laterally to 10 cm, with naked stolons 1–2 mm diam. Assimilators unbranched or branched, to 3 cm tall, bearing stalked, mainly spherical but occasionally clavate ramuli 2–3 mm long and 2.5–3.0 mm diam. distally, these usually radially arranged, lacking a constriction between the stalk and the distal sphere; length of the stalk-like proximal region not greater than the diameter of the distal region.

Distribution. Widely distributed in tropical seas.

Habitat. Usually epilithic in the intertidal and shallow subtidal.

[After Belton, Huisman & Gurgel, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 94 (2015)]

John Huisman and Cheryl Parker, 3 August 2021

Distribution

IBRA Regions
Carnarvon, Dampierland, Geraldton Sandplains, Indian Tropical Islands, Jarrah Forest, Northern Kimberley, Pilbara, Yalgoo.
IBRA Subregions
Cape Range, Edel, Geraldton Hills, Mitchell, Pindanland, Roebourne, Southern Jarrah Forest.
IMCRA Regions
Abrolhos Islands, Canning, Central West Coast, Kimberley, Leeuwin-Naturaliste, Ningaloo, Pilbara (nearshore), Pilbara (offshore), Shark Bay, WA South Coast.
Local Government Areas (LGAs)
Albany, Ashburton, Broome, Carnarvon, Cocos Islands, Coorow, Derby-West Kimberley, Esperance, Greater Geraldton, Irwin, Karratha, Port Hedland, Rockingham, Shark Bay, Wyndham-East Kimberley.