Plantera

Appearance
As of 9/2/2013, this boss has only been seen in silhouette. Based on the silhouette, this boss will be made of a multitude of vines resembling Man Eaters, with a central head resembling another Man Eater. The mouth of the central head appears to have a spike coming out of it.

Trivia

 * It is named after the band Pantera.