Carnivorous seaweed Carnivorous seaweed was an aquatic carnivorous species of plant that grew in the oceans of the planet Hapes and used its tentacles to suffocate its victims . In 23 ABY , Jedi trainees Tenel Ka , Lowbacca , Jacen Solo , and Jaina Solo were nearly killed by a patch of carnivorous seaweed in the Hapan ocean when Ambassador Yfra sabotaged their wavespeeder . Later , the young Jedi drove their wavespeeder into some carnivorous seaweed to kill a group of Bartokk assassins who were following them . Those assassins were sent by Yfra to kill the matriarch of Hapes , Ta ' a Chume , so Yfra could assume the role of Hapan monarch . Biology and appearance . Carnivorous seaweed was a species of aquatic plant that grew in at least one of the oceans of the planet Hapes . The seaweed had many tentacles , which were green , thick , and rubbery with long thorns . When cut , the tentacles oozed a syrupy green liquid . The carnivorous seaweed grabbed prey with its tentacles and then suffocated it by constriction . The plant also grew large scarlet flowers , with blue fruits in the center that resembled eyes . In 23 ABY , Jacen Solo , who was training at Jedi Master Luke Skywalker ' s Jedi Praxeum , tried and failed to use the Force to find the brain of a patch of carnivorous seaweed . He stated that the seaweed seemed to be all reflexes and hunger but that it was also at least partially sentient , as it could respond to its surroundings . History . In 23 ABY , a patch of carnivorous seaweed in the Hapan ocean nearly took the lives of Jedi trainees Tenel Ka , Lowbacca , and Jacen and Jaina Solo after their wavespeeder was sabotaged by Yfra , the Hapan matriarch ' s personal ambassador , during her plot to overthrow the Hapan monarchy . After escaping from the seaweed by using their lightsabers and knives , and returning to Reef Fortress , where they were staying , the young Jedi helped the matriarch , Ta ' a Chume , escape from Bartokk assassins by climbing out the window of her bedchamber , in which she was trapped . Yfra had sent the assassins to kill the matriarch so Yfra herself could be the monarch in place of those of the Hapan Royal Family . The Jedi trainees escaped the island in a small wavespeeder ; however , they were chased by the Bartokks in their assault boat . The friends decided to steer their wavespeeder into some carnivorous seaweed in the hope that the assassins would follow them and be killed by the seaweed . The assassins did follow the wavespeeder , and , after Chume set their craft off - balance using a small blaster she was carrying , they were pulled into the ocean by the carnivorous seaweed . The young Jedi escaped the seaweed and delivered Chume to her palace in time to stop Yfra from overthrowing the monarchy . Behind the scenes . Carnivorous seaweed first appeared in the 1996 young reader ' s book " " , by Kevin J . Anderson and Rebecca Moesta . In 1998 , it was mentioned in both Stephen J . Sansweet ' s " Star Wars Encyclopedia " , under the entry for " Hapes Consortium , " and Daniel Wallace ' s " The Essential Guide to Planets and Moons " , the latter of which provided the seaweed ' s first illustration . It was also mentioned in James Luceno ' s 2000 novel " " of the " Agents of Chaos " Duology . Later , in 2008 , it was mentioned in the entry for " Reef Fortress " in " The Complete Star Wars Encyclopedia " .