Anthos or Antheus (Flower) is a play by the 5th century BCE Athenian dramatist Agathon.
The play has been lost.
The play is mentioned by Aristotle in his Poetics (1451b) as an example of a tragedy with a plot which gives pleasure despite the incidents and characters being entirely made up.
[1][2] Anthos is the only known Greek tragedy play whose plot was entirely invented by the poet.
[3] Other 5th century tragedies were based on myth, or less frequently on actual history.