Sargassum

Sargassum
Scientific classification
Domain:	Eukaryota
Kingdom:	Chromalveolata
Phylum:	Heterokontophyta
Class:	Phaeophyceae
Order:	Fucales
Family:	Sargassaceae
Genus:	Sargassum
Species
Many

Sargassum is a genus of generally planktonic (free-floating) macroalgae (seaweed) in the order Fucales. The Atlantic Ocean's Sargasso Sea gets its name from the large amount of several species of Sargassum that grow there.