Calflora
Taxon  Report   10251    
Polygonum aviculare  L.
Prostrate knotweed
Polygonum aviculare
© 2016 John Doyen
Photos from
CalPhotos / Calflora
Polygonum aviculare
© 2010 Lee Dittmann
Polygonum aviculare
© 2008 Keir Morse
Polygonum aviculare, a dicot, is an annual or perennial herb that is not native to California; it was introduced from elsewhere and naturalized in the wild.

Interactive Distribution Map


Observation Hotline
(observation details)



point, line, or polygon

Plant Characteristics
and Associations



Bloom Period
Polygonum aviculare
© 2008 Keir Morse
Communities: weed, characteristic of disturbed places, wetland-riparian

Wetlands: Equally likely to occur in wetlands and non wetlands

Habitat: disturbed

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Polygonum aviculare var. vegetum
PLANTS: Polygonum heterophyllum
PLANTS: Polygonum monspeliense
More information about  Polygonum aviculare
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Photos on PlantID.net   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

USDA PLANTS Profile (POAV)

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 16, 2019).