A sure sign a tree has been invaded by mistletoe has a term: "Witches broom.” It’s a dense cluster of mistletoe branches that resemble a broom's bristles that can cause a tree to go "haywire ...

It's long been known as a romantic symbol of Christmas, but the reality is that mistletoe has a darker side to it. For one, it can be poisonous for humans. And what's more, if you find that it's ...