A small red alga (up to 8 cm in length), it is tough and cartilaginous with flattened fronds. Branching is alternate and occurs in one plane only, with branches becoming shorter towards their apex and broadly rounded. The plant is highly variable in size and colouration depending upon its location on the shore. Higher shore plants are generally dwarfed and yellow-green in colour, owing to exposure to high levels of sunshine while on the lower shore they are reddish-brown.This aromatic seaweed is dried and used as a spice in Scotland.

Azores Exclusive Economic Zone, European waters (ERMS scope), Irish Exclusive economic Zone, Mediterranean Sea, United Kingdom Exclusive Economic Zone

Depth range based on 155 specimens in 1 taxon.
Water temperature and chemistry ranges based on 30 samples.

Environmental ranges
  Depth range (m): 0 - 21
  Temperature range (°C): 11.471 - 24.634
  Nitrate (umol/L): 0.285 - 7.121
  Salinity (PPS): 35.184 - 35.437
  Oxygen (ml/l): 4.818 - 6.200
  Phosphate (umol/l): 0.108 - 0.439
  Silicate (umol/l): 1.185 - 3.285

Graphical representation

Depth range (m): 0 - 21

Temperature range (°C): 11.471 - 24.634

Nitrate (umol/L): 0.285 - 7.121

Salinity (PPS): 35.184 - 35.437

Oxygen (ml/l): 4.818 - 6.200

Phosphate (umol/l): 0.108 - 0.439

Silicate (umol/l): 1.185 - 3.285
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

 Common to middle and lower rocky shores, often covering large areas with a greenish-yellow turf like growth in pools and on rocks but never subtidal.

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Species: 3
Species With Barcodes: 1