| swamp smartweed | USDA PLANTS Symbol: PEHY7 U.S. Nativity: Native Habit: Forbs/Herbs |
| Persicaria hydropiperoides (Michx.) Small |
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Taxonomic Rank: Magnoliopsida: Polygonales: Polygonaceae |
| Synonym(s): mild smartweed |
| Selected Images from Invasive.org | View All Images at Invasive.org |
 Infestation; at margin of irrigation canal. Joseph M. DiTomaso, University of California - Davis, Bugwood.org Additional Resolutions & Image Usage |
 Infestation; Ohio State Weed Lab , The Ohio State University, Bugwood.org Additional Resolutions & Image Usage |
 Feature(s); Catherine Herms, The Ohio State University, Bugwood.org Additional Resolutions & Image Usage |
 Feature(s); Catherine Herms, The Ohio State University, Bugwood.org Additional Resolutions & Image Usage |
 Feature(s); ocrea Ohio State Weed Lab , The Ohio State University, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); in flower Catherine Herms, The Ohio State University, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); in flower Ohio State Weed Lab , The Ohio State University, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); Ohio State Weed Lab , The Ohio State University, Bugwood.org Additional Resolutions & Image Usage |
 Root(s); Ohio State Weed Lab , The Ohio State University, Bugwood.org Additional Resolutions & Image Usage |
 Fruit(s); Fruits with some perianth tissue still attached. D. Walters and C. Southwick, USDA, Bugwood.org Additional Resolutions & Image Usage |
 Fruit(s); Looking down on the apices of two fruits. D. Walters and C. Southwick, USDA, Bugwood.org Additional Resolutions & Image Usage |
| EDDMapS Distribution: This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org |
 State List This map identifies those states that list this species on their invasive species list or law. 
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| Invasive Listing Sources: |
