Hebenon (or hebona) is a botanical substance described in William Shakespeare`s tragic play Hamlet. The identity and nature of the poison has been a source of speculation for centuries. ==Shakespeare`s use== Hebenon is the agent of death in Hamlet`s father`s murder, it sets in motion the events of the play. It is spelled hebona in the Quartos ... Found on http://en.wikipedia.org/wiki/Hebenon