Knotweed Polygonum capitatum Location: Devastation Trail, Hawaii Volcanoes National Park, Hawai'i, HI Year: 2012 Merckdigitals catalogue number: 05-78036 Comments:

Knotweed Polygonum capitatum Location: Mauna Ulu Trail, Hawaii Volcanoes National Park, Hawai'i, HI Year: 2012 Merckdigitals catalogue number: 05-78077 Comments:

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