Snake Leaves are a leaf block added by HermitQuest. It is used to summon the Hermit PythonGB. As with any leaf block, this must be collected using shears.
Snake Leaves are quite rare and very hard to find. They can be found in Oak trees in Swamp biomes, and have a very subtly different texture from Oak Leaves. When close to them, the player should be able to hear a hissing noise, which helps to locate them.