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Saint-John's-wort
noun
any of a genus (Hypericum) of ornamental plants of the Saint-John's-wort family, with usually yellow flowers and numerous stamens
adjective
designating a family (Guttiferae, order Theales) of dicotyledonous trees, shrubs, and plants used for timber, in drugs, etc.
Also written Saint John's wort
See Saint-John's-wort in American Heritage Dictionary 4
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