US

Mistletoe is actually a tree-killing parasite -- here's how it became a Christmas icon

Pucker up? That adorable little sprig you’re smooching under this season is actually a ruthless parasite that sucks trees of their nutrients. Mistletoe has a long history that took it from you malicious tree-killer to an icon that’s as synonymous as wreathes and holly.

Follow Tech Insider: On Facebook

Business Insider Emails & Alerts

Site highlights each day to your inbox.

Follow Business Insider Australia on Facebook, Twitter, LinkedIn, and Instagram.