A sapling was a small cutting or growth of a tree which could be fostered and propagated into a new adult tree. (PROSE: The Monsters Inside)
Vale was a sapling of the Forest of Cheem. (AUDIO: Death in the New Forest)
During the takeover of Justicia, the Blathereen hid some of their warp-hole transporters underneath Poppito tree saplings. These saplings were in an aquaculture compound on Justice Prime, where inmates at the SCAT-house researched into plant growth and development. (PROSE: The Monsters Inside)