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Polygonum glabrum Willd.
Denseflower knotweed; Persicaria densiflora; Polygonum densiflorum

Life   Plantae   Dicotyledoneae   Polygonaceae   Polygonum


Associates · map
FamilyScientific name @ source (records)
Melanopsichiaceae  Melanopsichium austroamericanum @ BPI (6)

Melanopsichium pennsylvanicum @ BPI (3)
Microbotryaceae  Microbotryum tenuisporum @ BPI (1)

Sphacelotheca hydropiperis @ BPI (1)
Pucciniaceae  Puccinia @ BPI (1)
Ustilaginaceae  Ustilago utriculosa @ BPI (2)

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Following modified from Flora of Taiwan, National Taiwan University
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Following modified from Taiwan Biodiversity National Information Network
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You have requested an unaccepted/invalid name entry, the corresponding accepted/valid name is presented here as the result.
Kingdom Plantae  
 Phylum Tracheophyta  
 Class Magnoliopsida  
 Order Caryophyllales  
 Family Polygonaceae  
 Genus Persicaria  
  Persicaria glabra    (Willd.) M. Gómez 
Provider: Cheng-Tao Lin 
hierarchy tree    download xml    download txt    Chinese Page    
Synonyms: Persicaria densiflora Persicaria portoricensis Polygonum densiflorum Polygonum glabrum Polygonum portoricense   details
Citation: Anales del Instituto de Segunda Ensenanza de la Habana 2: 278. 1896. (Anales Inst. Segunda Ensenanza Habana)
Name Code: 433711
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http://plants.usda.gov/java/profile?symbol=POGL10 ---> https://plants.usda.gov/java/profile?symbol=POGL10
https://plants.usda.gov/java/profile?symbol=POGL10 ---> http://plants.usda.gov/core/profile?symbol=POGL10
http://plants.usda.gov/core/profile?symbol=POGL10 ---> https://plants.usda.gov/core/profile?symbol=POGL10
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Polygonum glabrum Willd.
denseflower knotweed

Image of Polygonum glabrum

General Information
Symbol: POGL10
Group: Dicot
Family: Polygonaceae
Duration: Annual
Growth Habit : Forb/herb
Native Status : L48   N
PR   N
Data Source and Documentation
About our new maps
Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   


click on a thumbnail to view an image, or see all the Polygonum thumbnails at the Plants Gallery

Robert H. Mohlenbrock. USDA NRCS. 1995. Northeast wetland flora: Field office guide to plant species . Northeast National Technical Center, Chester. Provided by USDA NRCS Wetland Science Institute (WSI). Usage Requirements .

Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1: 667. Provided by Kentucky Native Plant Society . Scanned by Omnitek Inc . Usage Requirements .

USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service. Provided by NRCS National Wetland Team . Usage Requirements .



Symbol Scientific Name Other Common Names
PEDE15 Persicaria densiflora (Meisn.) Moldenke
PEGL23 Persicaria glabra (Willd.) G. Maza
PEPO8 Persicaria portoricensis (Bertero ex Small) Small
PODE2 Polygonum densiflorum Meisn. denseflower knotweed
POPO16 Polygonum portoricense Bertero ex Small


Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Caryophyllidae
Order Polygonales
Family Polygonaceae – Buckwheat family
Genus Polygonum L. – knotweed
Species Polygonum glabrum Willd. – denseflower knotweed

Subordinate Taxa

This plant has no children

Legal Status

Threatened and Endangered Information:
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete protected plant list for that location.
Maryland Polygonum densiflorum
dense-flowered knotweed Endangered
New Jersey Polygonum densiflorum
dense-flower knotweed Endangered

Wetland Status

Interpreting Wetland Status


PEGL23   Persicaria glabra (Willd.) G. Maza

Top Level Regions
Caribbean OBL
Hawaii OBL
North America
Arid West OBL
Atlantic and Gulf Coastal Plain OBL
Eastern Mountains and Piedmont OBL
Great Plains OBL
Midwest OBL

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (POGL10)
Flora of North America (POGL10)
Integrated Taxonomic Information System (PEDE15)
Integrated Taxonomic Information System (PEPO8)
Integrated Taxonomic Information System (PODE2)
Integrated Taxonomic Information System (POPO16)
Lady Bird Johnson Wildflower Center Native Plant Information Network (POGL10)
Native American Ethnobotany (University of Michigan - Dearborn) (POGL10)



Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover

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