Lobed, smooth, broad and thin, flattened surface (sheet-like) as a single frond arising from holdfast. Holdfast at base is small with root-like (rhizoidal) extensions in lower cells. Grass green. Up to 15 cm long (thallus).
This green alga often grows on invertebrates and other algae/seagrass species. It is less common than other Ulva species. High numbers of this species form blooms seasonally and in areas of high nutrients such as near stormwater, stream run-off and sewerage outfalls.
Intertidal and subtidal rocky reefs, common in shallow waters, to depth of 6 m.
Photosynthetic - sunlight
Recorded in Australia
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed