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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.

Rhizoclonium riparium (Roth) Harv.

Reference
Phycol.Brit. Pl. CCXXXVIII (1849)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Scientific Description

Habit and structure. Thallus light green, in loose skeins tangled with other algae or growing as solitary tufts from a small pad, composed of unbranched filaments with rare lateral outgrowths arising as a projection from the parent cells, these occasionally absent. Cells with 1 or 2 pyrenoids, cylindrical, 15–30 μm diam. [L:B 1–7]; walls 3–7 μm thick.

Distribution. Widespread in most seas; probably throughout Australia, but often overlooked due to its small size.

[After Huisman & Leliaert, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 57 (2015)]

John Huisman and Cheryl Parker, 3 August 2021

Distribution

IBRA Regions
Carnarvon, Swan Coastal Plain, Warren.
IBRA Subregions
Cape Range, Perth, Warren.
IMCRA Regions
Kimberley, Shark Bay.
Local Government Areas (LGAs)
Ashburton, Augusta Margaret River, Carnarvon, Manjimup, Peppermint Grove, Wyndham-East Kimberley.