Hypericum tetrapterum

(redirected from St. Peter's Wort)
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Noun1.Hypericum tetrapterum - European perennial St John's wort; Ireland and France to western Siberia
St John's wort - any of numerous plants of the genus Hypericum having yellow flowers and transparently dotted leaves; traditionally gathered on St John's eve to ward off evil
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The resemblance of the plant to a bunch of keys may have earned it the name St.

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