Minecraft wiki entry for Tree, associated text: Jungle trees are one of the rarest naturally generated trees in Minecraft because they are native to the jungle biomes, which are themselves rare. Jungle tree leaves drop jungle tree saplings. When planted in grass or dirt they grow into a jungle tree with a 1×1 trunk, but the player can place them in a 2×2 formation to grow a jungle tree with a 2×2 trunk like the trees found naturally in the jungle biome. Bushes also generate in the jungle biome, featuring oak leaves and a single jungle log.