Posted: 04/08/2014 at 21:47
That brings back memories - when I was a child living in a very old and run-down farmhouse we had Ground Elder, roses and Kerria japonica coming through the skirting board into the drawing room!!!
I would get some weedkiller gel containing glyphosate and apply it to the leaves. As soon as it dries it will be harmless to humans and animals. Leave it until the leaves are brown and dead - it may take a while - that will give time for the active ingredient to have travelled down the stems to kill the roots. Then you can pull it up.
Hope that's helpful