A plant.

But woe unto you, Pharisees! for ye tithe mint and RUE and all manner of herbs, and pass over judgment and the love of God: these ought ye to have done, and not to leave the other undone. ( Luke 11:42 )

Source: A King James Dictionary. (Used with permission. Copyright © Philip P. Kapusta)

Bibliography Information

"Entry for 'Rue'". A King James Dictionary.