WORCESTER -- A drug deal went sour Wednesday after the buyer discovered the leafy green substance in the bag he bought was oregano, not the marijuana he thought he was buying.

A 19-year-old ended up with a slash on his finger and small cuts on his arm after confronting the alleged drug dealer for selling him fake pot on Parkton Street Wednesday afternoon.

The teen told police that he tried to buy marijuana off 32-year-old Matthew McCourt but ended up in an altercation with him after he discovered McCourt had sold him oregano. McCourt allegedly slashed at him with a box cutter.

McCourt, of 19 Forbes St., Apt. 3, was arrested on Thursday and charged with assault and battery with a dangerous weapon.