Beard’s Provinces: Eremaean Province, Northern Province.
IBRA Regions: Carnarvon, Dampierland, Northern Kimberley, Pilbara.
IBRA Subregions: Cape Range, Mitchell, Pindanland, Roebourne.
IMCRA Regions: Abrolhos Islands, Canning, Kimberley, Ningaloo, Northwest Shelf, Oceanic Shoals, Pilbara (nearshore), Pilbara (offshore).
Local Government Areas (LGAs): Ashburton, Broome, Carnarvon, Derby-West Kimberley, Exmouth, Greater Geraldton, Karratha, Wyndham-East Kimberley.
Habit and structure. Thallus grey-green or green, spreading laterally to 30 cm, with smooth terete stolons 1.0–2.2 mm diam. Assimilators 4–6 cm tall, generally with an unbranched terete stalk 1.0–1.5 mm diam. Rachis flattened, unbranched or 1 or 2 times dichotomously branched, 2–5 mm wide, occasionally twisted or curled, lacking ramuli but with marginal serrations to 1 mm long.
Distribution. Widely distributed in tropical seas. In W.A. south to Coral Bay.
Habitat. Epilithic in the intertidal and subtidal.
[After Belton, Huisman & Gurgel, Algae of Australia: Mar. Benthic Algae of North-western Australia, 1. Green and Brown Algae 95 (2015)]
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Western Australian Herbarium (1998–). FloraBase—the Western Australian Flora. Department of Biodiversity, Conservation and Attractions. https://florabase.dpaw.wa.gov.au/