A Hooji tree was a type of tree native to Velgris. They bore fruit weekly.
Two-fifths of the planet was covered by Hooji trees. Depending on the sounds, the trees bore a different fruit. (COMIC: Harvest of Doom)
The Hooji trees had life-giving properties that the Atomon took advantage of in his conquest to gain true physical life. (COMIC: The Atomon Invasion)