Winter rose (Helleborus niger). This plant is often grown close to houses in private gardens, and all parts are poisonous.

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Wisteria (Wisteria species, usually W. sinensis). This beautiful climber is grown around many houses for its hanging clusters of mauve, or less commonly, white flowers. The pods and seeds of this legume are poisonous, but fortunately they are not nearly as common as the flowers.

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Woolly nightshade (Solanum mauritianum). This very familiar shrub or small tree has little globular dull yellow berries. These are probably not as poisonous as in many other Solanum species, but they should not be eaten.

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Yew (Taxus baccata). Although nearly all parts are poisonous, only the soft red berry with its poisonous green seed is likely to be eaten by children.

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