CHROMOPHYTA : Fucales : SargassaceaeBROWN ALGAE

Cystoseira humilis Kützing


Description: Latterals never flattened in either adult or young plants. Branches radially arranged, filiform without swollen bases. Not iridescent.

Habitat: Rare. Littoral littoral rock pools.

Distribution: South-west England and Channel Islands. Europe: Canary Islands. Further afield: Salvage Islands, Canary Islands, Mauritania and Cape Verde Islands.

Similar Species: Other species of the genus particularly C. foeniculacea.

Key Identification Features:

  • Not iridescent.

Distribution Map from NBN: Cystoseira humilis at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Cystoseira humilis at iNaturalist World Species Observations database.

WoRMS: Cystoseira humilis at World Register of Marine Species.

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 Morton, O., Keatley, L., Morrow, C.C. & Picton, B.E. (2026). Cystoseira humilis. Kützing. [In] Encyclopedia of Marine Life of Britain and Ireland.
https://habitas.org/mbdp/species.php?item=ZR7080. Accessed on 2026-11-01