And what's more, if you find that it's growing in your yard, it can kill your other shrubs and trees. "All parts of American mistletoe contain a toxic protein called phoratoxin," according to WebMD.

That’s why the Angeles and San Bernardino National Forests require permits to harvest mistletoe. Found on oaks and pines, the plant siphons nutrients and water. While healthy trees can coexist ...

For many people, Christmas is a time for decorating trees, hanging up wreaths and kissing under the mistletoe. But have you ever wondered where these botanical traditions come from? 'Tis the season ...