Coriaria myrtifolia, called in English redoul, is a shrub to 2–3 m tall. Myrtifolia means myrtle-like leaves. The fruit is a fleshy black berry achene slightly similar to a blackberry but toxic. Coriaria myrtifolia has the largest fruits in the genus Coriaria. It is especially dangerous for children, who may eat it if they confuse it with edible berries. Coriaria myrtifolia should be recognized as one of the most neurotoxic plants in the western Mediterranean area.