What is Ruta Graveolens Extract produced in Nutramax? Rue, a hardy, evergreen, somewhat shrubby plant, is a native of Southern Europe. The stem is woody in the lower part, the leaves are alternate, bluish-green, bi- or tripinnate, emit a powerful, disagreeable odour and have an exceedingly bitter, acrid and nauseous taste. The greenish-yellow flowers are in terminal panicles, blossoming from June …