Leaves

Leaves are translucent Green blocks that naturally generate on Trees. Leaves are flammable, and can be easily destroyed by hand as well.

Types
There are 6 types of leaves-
 * Oak
 * Birch
 * Spruce
 * Acacia
 * Jungle
 * Dark Oak

Obtaining
Leaves cannot be obtained without using Shears. If broken by hand, they will drop nothing. Leaves cannot be legitimately obtained in any other way.

Trivia

 * In 0.9.0, jungle leaves were made opaque.
 * Leaves will never drop saplings when sheared.
 * Spiders spawn from leaves in MCPE.