Hypericum tetrapterum(redirected from Square-stalked St John's-wort)
Also found in: Thesaurus.
Switch to new thesaurus
|Noun||1.||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