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Family: polygonaceae
Common name(s): smartweed; lady's thumb
Synonym(s): Polygonum persicaria
Hardiness ratings: USDA zone 4b - 10 
General resources
Links for Persicaria maculosa
- Cretan Flora - Botanical profile of this plant occurring on Crete.
 (18 photos)
- Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 4b-10a) (7 photos)
- Garden.org - Community-assembled plant profile (7 photos)
- Illinois Wildflowers - Informative illustrated page with description and cultivation details, also covering range and faunal associations. (2 photos)
- Kansas Wildflowers & Grasses - Plant portrait with botanical details and description (5 photos)
- Missouri Plants - Description and photographs of botanical features, with notes about habitat and native status. (13 photos)
- Ontario Rock Garden Society - Germination information (use search on page to find this taxon)
- Rob's Plants - Plant profile with basic horticultural information and often personal observations. (2 photos)
- Southwest Colorado Wildflowers - Photos and botanical information about the species/genus. (8 photos)
- Turner Photographics - Profile of wildflower of the US Pacific Northwest, with botanical description, habitat and distribution, and photo gallery.
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