Giant algae-beds were a botanical species that evolved sentience in the Cygnus B system, a star system located in the Esaga sector of the Mid Rim. The algae-beds were extremely intelligent, with a highly complex brain. Like many such species, considered to be super-brains, they were unable to move around independently. As a consequence, the algae-beds had little involvement in the galactic community. They were known of in the galaxy by 0 BBY. By that point, Luke Skywalker, then an inhabitant of the remote planet Tatooine, had seen a picture of the giant algae-beds.