common St. Johnswort USDA PLANTS Symbol: HYPE
U.S. Nativity: Exotic
Habit: Herb
Hypericum perforatum L.
Taxonomic Rank: Magnoliopsida: Theales: Clusiaceae
Synonym(s): Klamathweed, St. John's wort
Native Range: Europe (BAIL);

U.S. State(s) where reported invasive:

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U.S. National Parks where reported invasive:
Glacier National Park (Montana)
Yellowstone National Park (Wyoming)