What Are Pink Peppercorns?

I just bought a jar of peppercorns-it includes black, green, and pink. I know black and green are the same (the black are just sun-dried green peppercorns), but what are the pink ones? Are they a different species of pepper?

http://www.hormel.com/kitchen/glossary.asp?id=37010&catitemid=

They’re for girly-men.

      • I believe in one of William Poundstone’s Big Secrets books, he reveals that “gourmet” pink peppercorns are essentially the berries of a weed that commonly grows wild all across the southeastern US.
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