Pelvetia canaliculata, the channelled wrack,[2] is a very common brown alga (Phaeophyceae) found on the rocks of the upper shores of Europe.

[1][3] In 1999, the other members of this genus were reclassified as Silvetia due to differences of oogonium structure and of nucleic acid sequences of the rDNA.

The genus name of Pelvetia is in honour of François Alexandre Pelvet (1801–1882), who was a French naturalist and plant collector.

[12] Pelvetia canaliculata is common on the Atlantic shores of Europe from Iceland to Spain, including Norway, Ireland, Great Britain, the Netherlands, France and Portugal.

[13] In Ireland, collection of Pelvetia canaliculata (Irish: dúlamán) has been recorded as a source of sustenance during times of famine.

[14] A popular Irish folk song, Dúlamán, describes events transpiring between two people who collected the seaweed as a profession.