Taxon  Report   11006 
Persicaria amphibia  (L.) Delarbre
Water smartweed
Persicaria amphibia
© 2018 Ron Vanderhoff
More photos from
CalPhotos / Calflora
Persicaria amphibia
© 2005 Steve Matson
Persicaria amphibia
© 2008 Neal Kramer
Persicaria amphibia, a dicot, is a perennial herb (aquatic) that is native to California and is also found outside of California, but is confined to North America.

Interactive Distribution Map

Observation Hotline
(observation details + photos)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Persicaria amphibia
© 2003 Tom Annese
Genus: Persicaria
Wetlands: Occurs in wetlands
Distribution by County 

Add an Observation of  Persicaria amphibia

Name Status:
Accepted by JEF
PLANTS accepted name: Polygonum amphibium var. emersum
Alternate Names:
(according to)

ICPN: Persicaria coccinea
ICPN: Polygonum amphibium var. emersum
ICPN: Polygonum amphibium var. stipulaceum
ICPN: Polygonum amphibium
ICPN: Persicaria amphibia var. emersa
ICPN: Persicaria amphibia var. stipulacea
More information about  Persicaria amphibia
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Landscaping information from Calscape
Photos on CalPhotos / Google Images
Photos on

Jepson eFlora

Records from the Consortium of California Herbaria


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: Jun 24, 2018).

The information on this page comes from diverse sources. None of the links are sponsored.