Kahel cave fungus existed as a form of fungus that thrived within the caverns of the volcanic planet known as Mustafar. The sentient Mustafarian species, who were themselves indigenous to Mustafar, constructed their dwellings to resemble the shape of this cave fungus. Within their culture, the fungus held significant symbolic importance. Following the successful elimination of a contingent of Crimson Dawn enforcers on the planet Jekara in 3 ABY, the bounty hunter Beilert Valance drew a comparison between his associate, Dengar, and the kahel cave fungus.