Skip to main content

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 Conservation listings displayed on Florabase may also be out of date.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 taxifolia var. distichophylla (Sond.) M.Verlaque, Huisman & Procaccini

Reference
Jongma et al., Bot.Mar. 56:36 (2013)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus medium to dark green, spreading laterally to 15 cm, with smooth slender stolons 0.5–1.0 mm diam. Assimilators to 8 cm tall, simple to several times branched. Rachis basally terete, becoming distally compressed, 0.5–1.0 mm wide, bearing opposite distichously arranged closely adjacent ramuli. Ramuli flattened, 1–2 (–3) mm long, slightly upwardly curved and broadest (0.2–0.5 mm) just above the slightly constricted base, tapering to a broad and pointed apex.

Distribution. In W.A., this species is known from Ningaloo Reef south to Albany; invasive in Sicily and Turkey.

Habitat. Epilithic.

[After Belton, Huisman & Gurgel, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 98 (2015)]

John Huisman and Cheryl Parker, 3 August 2021

Distribution

IBRA Regions
Esperance Plains, Geraldton Sandplains, Swan Coastal Plain.
IBRA Subregions
Fitzgerald, Geraldton Hills, Perth.
IMCRA Regions
Central West Coast, Leeuwin-Naturaliste.
Local Government Areas (LGAs)
Cockburn, Cottesloe, Dandaragan, Greater Geraldton, Irwin, Jerramungup, Rockingham, Wanneroo.