Summary description from Wikipedia:

Polygonum californicum in languages:

English

California Knotweed

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©Chloe Novak, some rights reserved (CC-BY-NC)

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©Chloe Novak, some rights reserved (CC-BY-NC)

©Chloe and Trevor Van Loon, some rights reserved (CC-BY)

©Chloe and Trevor Van Loon, some rights reserved (CC-BY)

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©Shane Hanofee, some rights reserved (CC-BY-NC)

©Rob Irwin, some rights reserved (CC-BY-NC)

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©Shane Hanofee, some rights reserved (CC-BY-NC)

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©Rob Irwin, some rights reserved (CC-BY-NC)

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©Kyle Brine, some rights reserved (CC-BY-NC)

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©Cat Chang, some rights reserved (CC-BY-NC)

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©Jenn Yost, PhD, some rights reserved (CC-BY-NC)

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Parent Taxon

• Polygonum

Sibling Taxa

• Polygonum austiniae
• Polygonum bidwelliae
• Polygonum bolanderi
• Polygonum californicum
• Polygonum cascadense
• Polygonum douglasii
• Polygonum engelmannii
• Polygonum heterosepalum
• Polygonum hickmanii
• Polygonum majus
• Polygonum minimum
• Polygonum nuttallii
• Polygonum paronychia
• Polygonum parryi
• Polygonum polygaloides
• Polygonum sawatchense
• Polygonum shastense
• Polygonum spergulariiforme
• Polygonum tenue
• Polygonum utahense

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