The term "subtree" would be useful for a Shadow DOM spec and probably for the Mutation Observers text.
What exactly would this term mean?
A subtree is a tree or part of a tree. For example, give a node in a tree, all descendants of this node are in a subtree.
(In reply to comment #2)
> A subtree is a tree or part of a tree. For example, give a node in a tree,
> all descendants of this node are in a subtree.
I guess it's a term relative to a tree. The nodes in the example above are in a subtree relative to the larger tree in which node participates.
I am in the process of nomenclature change in the Shadow DOM spec, so I'll see how much I can remove the notion of a subtree. I'll report after I am done -- I'll know better whether the Shadow DOM spec needs the term subtree.
BTW, as of http://dvcs.w3.org/hg/webcomponents/rev/5f578fec5447, there's no longer the term "subtree" mentioned in the Shadow DOM spec.
Resolving as WONTFIX then for lack of use case.