Simple cylindrical (terete) stalk (stipe) arising from simple disc-conical holdfast. Lower laterals (perennial laterals) are linear and can divide in forks. Long primary branches densely covered with short secondary branches arranged radially with leaf-like laterals, and reproductive "branchlets" (receptacles) form in clusters in the axis of the laterals with forking at the tips. Vesicles are round-oval in shape and are attached by a short stem (petiole) to the axis of the laterals. Dark brown. Up to 50 cm long (thallus).
Sargassum linearifolium is the most widespread of the Sargassum genus in Australia. Sargassum species have deciduous fronds and plants often remain dormant with just the perennial base for most of the year. They are the largest growing group of all algae and are used as tea in Chinese medicine.
Shallow subtidal rocky reefs and tidal pools in rough waters, to depth of 5 m.
Mauritius, India and Australia.
Photosynthetic - sunlight
Recorded in Australia
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed