XSLT：如何选择没有子节点的所有节点

I want to insert the names of all of the nodes and their values into an xml. The problem that I'm having is one of the first child nodes doesn't have any values assigned to it, but it does have child nodes which have values. If I just use a wildcard then it just selects all of the child nodes on that level including the one without a value assigned to it. Is there a way to use wildcard to only select children nodes that don't have children nodes themselves?I want to insert the names of all of the nodes