Taxon  Report   7221 
Rumex occidentalis  S. Watson
Western dock
Rumex occidentalis
© 2014 Patrick Furtado
More photos from
CalPhotos / Calflora
Rumex occidentalis
© 2012 Vernon Smith
Rumex occidentalis
© 2009 Neal Kramer
Rumex occidentalis, a dicot, is a perennial herb that is native to California, is also found elsewhere in North America and beyond.

Interactive Distribution Map

Observation Hotline
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point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Rumex occidentalis
© 2009 Neal Kramer
Genus: Rumex
Wetlands: Occurs usually in wetlands, occasionally in non wetlands
Distribution by County 

Add an Observation of  Rumex occidentalis

Name Status:
Accepted by JEF + JM93
PLANTS accepted name: Rumex aquaticus var. fenestratus
Alternate Names:
(according to)

ICPN: Rumex aquaticus var. fenestratus
More information about  Rumex occidentalis
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on CalPhotos / Google Images
Photos on

Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

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]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Aug 20, 2018).

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