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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 Conservation listings displayed on Florabase may also be out of date.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.

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.