Head Eaters are enemies found since from the early beginning of the game through many zones of the island.
"Attacks with its alrge mouth, which has poisonous stingers. These are different species from the ones in Verdite, and they are more dangerous" - Truth Mirror description.
These plants attack swinging their head forward trying to bite, and they may cause the status Poison. However, they have generally low HP, so they are easy to kill.
- Earth Herb