6European Yew (Taxus baccata)

The European Yew is an evergreen tree found across Europe and parts of Asia. Almost every part of this tree, except its bright red berries, is highly toxic. The tree contains taxine alkaloids, which can cause nausea, paralysis, and even death if ingested.
While the berries look harmless, even their seeds are poisonous. Despite its danger, the Yew is often planted in gardens for its ornamental value.