Träden, formerly known as Träd, Gräs Och Stenar in different incarnations, but often just called Träden for short, is a Swedish psychedelic rock band incorporating long, crescendoing improvisations. Today, Träden consists of Hanna Östergren (Hills), Sigge Krantz (Archimedes Badkar), Reine Fiske (Dungen, The Amazing), and originator Jakob Sjöholm.