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Vascular Plants of Lassen Volcanic National Park

Douglas' knotweed 1
Polygonum douglasii douglasii
Johnston's Knotweed 2
Polygonum douglasii johnstonii
broadleaf knotweed 3
Polygonum minimum
Kellogg's knotweed 2
Polygonum polygaloides kelloggii

Edited by Lassen Volcanic NP Natural Resource Management, some rights reserved (CC BY-SA)

Photo Credits

  • 1. (c) Lassen Volcanic NP Natural Resource Management, some rights reserved (CC BY-NC), uploaded by Lassen Volcanic NP Natural Resource Management
  • 2. (c) Lassen Volcanic NP Natural Resource Management, some rights reserved (CC BY-NC-SA), uploaded by Lassen Volcanic NP Natural Resource Management
  • 3. (c) 2010 Barry Breckling, some rights reserved (CC BY-NC-SA)

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