Ruta graveolens  (Flower)-Rutaceae Ruta graveolens (Angiospermae)-Rutaceae Ruta graveolens: Perennial herb with a strong odour throughout. Leaves bipinnate to tripinnate, lobules short spatulate or narrowly oblong, grey-green or bluish green. Flowers golden yellow. Fruiting Period: July-September Uses: A small garden shrub with evergreen leaves and yellow flowers in clusters; also used as a spice and medicine.