Description: Thallus erect to 10 cm long, fronds rising from a discoid holdfast, stipe terete expanding into a flat-shaped blade with marginal proliferations deviding diochotomously 1 to 4 times, each branch to 10 mm wide.

Habitat: Common, epilithic and epiphytic generally sublittoral to 30 m.

Distribution: Widespread in the British Isles generally on western shores of Ireland, Wales, Scotland, Wales and England. Europe: Portugal, Spain and France. Further afield: Canary Islands, the Azores and South Africa.

Similar Species: Other species of Phyllophora; Schottera nicaeensis and Stenogramme interrupta

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

iNaturalist: Rhodymenia pseudopalmata at iNaturalist World Species Observations database.

WoRMS: Rhodymenia pseudopalmata at World Register of Marine Species.