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Service Notice

The Western Australian Herbarium’s collections management system and census were set to read-only mode on 1 October 2025. Taxonomic updates published since this time are not being reflected in Florabase, herbarium collections, or Western Australia’s taxonomic names census (Nomos). Conservation listings displayed on Florabase may also be out of date. Please refer to DBCA’s Threatened species and communities webpage for the most recent Threatened and Priority Flora List, noting that recent taxonomic updates are similarly not included. Our database migration is moving to a staging phase. We thank you for your patience as we ensure the integrity of our biodiversity data, develop new workflows, and train staff to use the new systems. Please reach out to us if you have any questions or concerns.

The notice period started at 12:00 pm on Wednesday, 1 October 2025 +08:00 and will end at 12:00 pm on Friday, 1 January 2027 +08:00.

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.