Silverwood Leaves are the leaves that are on the Silverwood Tree. When broken they can drop quicksilver . They do not drop Silverwood Saplings, seince unfortunatly for they do not exist.And if you where to mine them with shears, much like regular leaves, will drop leaves. But also like leaves will not drop any thing that broken leaves would normally spawn. They do not auto despawn in the yogbox, however they do in technic. This means if you play yogbox you will have to manually break the leaves. That is all i know for now.
This is a silverwood tree