Common Name: St. Johnswort, klamathweedScientific Name: Hypericum perforatum L.Family Name: Hyperiacaceae - St. Johnswort FamilyIdentification NotesLife Cycleintroduced perennial, reproducing by seeds and roots Stemsupright, smooth, very branched, often becomes woody below Leavesopposite, elliptic to oblong, sessile, many very small translucent dots Flowers5-petaled, orange-yellow, petal margins often with black spots, stamens many; terminal clusters above