Rue

Rue is a kind of evergreen shrubs native to the Mediterranean region, Macaronesia and southwest Asia, with a distinctive bitter taste.

Rue has healing properties, and is used in wizarding remedies: essence of rue is used to recover after poisoning, and it is also used in the treatment of mad dog bites.

Appearances

 * Harry Potter and the Goblet of Fire (film)
 * Harry Potter and the Half-Blood Prince