Can I get some help to identify the vine please? I have dug a couple up which have single large root, almost like a parsnip?
Many thanks
It looks like it might be some kind of Marah, or wild cucumber. Apparently (by wikipedia), there are lots of different species of this. When you say it has a root like a parsnip, it sounds like it might be one of them, because they seem to have interesting taproots.
Example here:
Hope your weed isn't as bad as that.