Man Eater

Found in the Underground Jungle biome, these plants can easily kill you if caught unaware. Destroying the rock that it's rooted on kills it instantly. Rare drops Vine, needed for Ivy Whip.

They have a limited range, so you can easily sit outside this and pick them off, though it seems the range extends when hit temporarily, so don't sit too close.

Along with Hornets, they also have a chance of dropping Cobalt Armor pieces.