General Description

Long compressed and strongly backwards (retroflex) zigzagged central stalk (stipe) with long strongly zigzagged secondary branches (laterals) arising in an alternating pattern. Secondary branches are further branched in vertical rows on three sides giving rise to branchlets (ramuli). Branchlets are singular or forked in an alternate pattern, ending in reproductive structures (receptacles). Vesicles are tapered at both ends, attached to laterals by a short stem (petiole) and scattered over secondary branches. Holdfast at base is a simple and disc-conical shaped. Dark brown. Up to 60 cm long (thallus).

Biology

This species is often found growing near Cystophora monilifera.

Habitat

Subtidal rocky reefs and tidal pools, moderate wave action, to depth of 4 m.

Reefs

Coastal shores

Distribution guide

Southern Australia.

Species Group

Seaweeds and seagrasses › Brown algae

Depth

Shore (0-1 m)
Shallow (1-30 m)

Water Column

On or near sea floor

Max Size

60 cm

Diet

Photosynthetic - sunlight

Commercial Species

No

Global Dispersal

Native to Australia

Identify

• Seaweeds and seagrasses

Conservation Status

• DSE Advisory List : Not listed
• EPBC Act 1999 : Not listed
• IUCN Red List : Not listed