Calflora
Taxon  Report   11006    
Persicaria amphibia  (L.) Delarbre
Water smartweed
Persicaria amphibia
© 2003 Tom Annese
Photos from
CalPhotos / Calflora
Persicaria amphibia
© 2018 Ron Vanderhoff
Persicaria amphibia
© 2008 Neal Kramer
Persicaria amphibia, a dicot, is a perennial herb (aquatic) that is native to California, is also found outside of California, but is confined to North America.

Interactive Distribution Map


Observation Hotline
(observation details)



point, line, or polygon

Plant Characteristics
and Associations



Bloom Period
Persicaria amphibia
© 2005 Steve Matson
Family: POLYGONACEAE  
Genus: Persicaria
Communities: wetland-riparian

Wetlands: Occurs in wetlands

Name Status:
Accepted by JEF

PLANTS accepted name:
Polygonum amphibium var. emersum

Alternate Names:
ICPN: Persicaria coccinea
ICPN: Polygonum amphibium
ICPN: Polygonum amphibium var. emersum
. . .
More information about  Persicaria amphibia
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Landscaping information from Calscape
Photos on PlantID.net   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

USDA PLANTS Profile (POAME)

Search efloras.org (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: https://www.calflora.org/   (Accessed: Jan 24, 2019).