The trident cluster coral was a species of above-ground coral that grew on the moon of Rugosa. Along with other coral species, it formed a dense maze of hot and dry forests thriving with reptiles and insects. Jedi Master Yoda and his escort of three clone troopers used a forest of trident cluster coral to evade a Separatist task force while they were on Rugosa on a mission to meet with King Katuunko.