Jungle Leaves
minecraft:jungle_leavesJungle leaves are the foliage blocks generated by jungle trees, and they decay and disappear when not within range of a connected log or wood block, unless placed directly by a player. Breaking them without Silk Touch has a low chance of dropping a jungle sapling, plus a small chance of dropping sticks. They are highly flammable and will ignite quickly from nearby fire or lava, so builders often clear them away from anything that needs fire protection.
FAQ
Why do jungle leaves disappear after I cut down the tree?
Leaves need to stay within a short distance of a connected log or wood block. Once that connection is broken, they receive a decay check and vanish unless a player placed them directly.
What is the drop chance for jungle saplings?
Breaking jungle leaves by hand has a low base chance of dropping a sapling, and using a Fortune-enchanted tool increases that chance further.
Do I need special tools to keep the leaf block itself?
Yes, only shears or a tool enchanted with Silk Touch will drop the leaves block itself; otherwise you only get saplings, sticks, or nothing.
Are jungle leaves dangerous near fire?
Yes, they are highly flammable and will catch fire readily from lava or adjacent flames, so keep them clear of anything you don't want burned down.