Taxon  Report   6742    
Polygonum bolanderi  W. H. Brewer
Bolander's knotweed,  Bolander's polygonum
Polygonum bolanderi
© 2008 John Dittes
Photos from
CalPhotos / Calflora
Polygonum bolanderi
© 2015 Dana York
Polygonum bolanderi
© 2015 Dana York
Polygonum bolanderi, a dicot, is a perennial herb that is native to California, is endemic (limited) to California.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Polygonum bolanderi
© 2008 John Dittes
Genus: Polygonum
Communities: Southern Oak Woodland, Chaparral, Yellow Pine Forest
Name Status:
Accepted by JEF + PLANTS

More information about  Polygonum bolanderi
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

website references from Google

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Jan 21, 2019).