Hypericum tetrapterum
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| Hypericum tetrapterum | ||||||||||||||
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| Hypericum tetrapterum Fries |
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Hypericum quadrangulum |
Hypericum tetrapterum (syn. H. quadrangulum) is a species in the genus Hypericum, in the family Hypericaceae. Its common names include St. Peter's Wort, Peterwort, Square Stemmed St. John's Wort, and Square Stalked St. John's Wort.

