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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 longifolia C.Agardh

Reference
Spec.Alg. 437 (1823)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current
Image

Scientific Description

Habit and structure. Stolon coarse, (1–)2–4 mm in diameter, cartilaginous, naked, epilithic. Erect fronds medium to dark green, with simple or rarely branched axes, usually 15–50(–65) cm high and 1–2(–3) cm across; axes terete, naked below and 1–3 mm in diameter above, bearing normally 5 regular rows (occasionally 4 or 6 rows) of slender, terete, ramuli. Ramuli separated by about their basal width, 0.5–1.5cm long and 300–450(–600) µm in diameter, linear, directed and curved upwards, tapering near their apices to a short, blunt or spinous tip.

Distribution. From Eucla, W. Aust., to Wilsons Promontory, Vic., and around Tas.

Habitat. Occurs on rough-water coasts from rock pools down to 40 m.

[After Womersley, Mar. Benthic Fl. Southern Australia I: 260–262 (1984)]

John Huisman & Cheryl Parker, 3 August 2021

Distribution

IMCRA Regions
Central West Coast, Leeuwin-Naturaliste.
Local Government Areas (LGAs)
Cockburn, Coorow, Irwin, Rockingham.