Taxon  Report   11011    
Persicaria maculosa  Gray
Spotted ladysthumb
Persicaria maculosa
© 2008 Keir Morse
Photos from
CalPhotos / Calflora
Persicaria maculosa
© 2008 Louis-M. Landry
Persicaria maculosa
© 2008 Keir Morse
Persicaria maculosa, a dicot, is an annual 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
Persicaria maculosa
© 2017 Bob Stahmer
Genus: Persicaria
Communities: weed, characteristic of disturbed places, wetland-riparian

Wetlands: Occurs usually in wetlands, occasionally in non wetlands

Habitat: disturbed

Name Status:
Accepted by JEF

PLANTS accepted name:
Polygonum persicaria

Alternate Names:
ICPN: Polygonum persicaria
ICPN: Polygonum fusiforme
More information about  Persicaria maculosa
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Photos on   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria


Search (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:   (Accessed: Jan 22, 2019).