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Rue (Ruta) is a genus of strongly scented evergreen subshrubs 20-60 cm tall, in the family Rutaceae, native to the Mediterranean region, Macaronesia and southwest Asia. Different authors accept between 8-40 species in the genus. The leaves are bipinnate or tripinnate, with a feathery appearance, and green to strongly glaucous blue-green in colour. The flowers are yellow, with 4-5 petals, about 1 cm diameter, and borne in cymes. The fruit is a 4-5 lobed capsule, containing numerous seeds.

The Common Rue (Ruta graveolens), also known as Herb-of-grace, is grown as a herb. It is native to southern Europe. It is sometimes grown as an ornamental garden plant, especially because of its bluish leaves, and also sometimes for its tolerance of hot and dry soil conditions. It also is grown as both a medicinal herb and as a condiment.

Species

• Egyptian Rue , Ruta angustifolia
• Fringed Rue , Ruta chalapensis
• Corsican Rue , Ruta corsica
• Common Rue , Ruta graveolens
• Mountain Rue , Ruta montana
• Syrian rue, Peganum Harmala
• Several others