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.