Taxon  Report   11006 
Persicaria amphibia  (L.) Gray p.p.
Water smartweed
Persicaria amphibia
© 2005 Steve Matson
Click on a photo to see it bigger.
Persicaria amphibia
© 2010 Dr.Thomas K. Voekler
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 TJM2
PLANTS accepted name: Polygonum amphibium var. emersum
Alternate Names:
(according to)

TJM2: Persicaria coccinea
TJM2: Polygonum amphibium var. emersum
TJM2: Polygonum amphibium var. stipulaceum
TJM2: Polygonum amphibium
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
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: Feb 20, 2018).

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