دانشگاه آزاد اسلامی کرمانشاه
The plant. Hypericum perforatum is a yellow-flowering, rhizomatous, perennial herb indigenous to Europe, which has been introduced to the Americas and grows wild in many meadows. The common name comes from its traditional flowering and harvesting on St John's day, 24 June.The genus name Hypericum is derived from the Greek words hyper (above) and eikon (picture), in …
