• Kingdom: Plantae
  • Phylum: Ochrophyta
  • Class: Phaeophyceae
  • Order: Fucales
  • Family: Sargassaceae
  • Scientific name: Halidrys siliquosa
  • Norwegian: skolmetang, skulpetang


This brown seaweed is usually 20-30 cm of height, but may occasionally reach as much as 2 meters. The color is yellow brown. The fronds are alternately and irregularly branched. The segmented air bladders are pod-shaped.


Found in the lower tidal zone and subtidal zone, often in current exposed locations.


It is known in the North East Atlantic Ocean.