Utah Valley University Herbarium


Accession # 03922 
Family - UVUAPG III FamilyCronquist FamilyA Utah Flora
Species Polygonum persicaria L.
Common name   spotted ladysthumb
Donna M. Barnes   s.n.  
Coll. Date 18 September 1999 
United States
Wasatch County
Locality Highway 113, Midway turn off, NW edge of Deer Creek Reservoir;
Habitat Notes in water at the edge of the lake, muddy flat area where resevoir has receeded. 
Climate NCDC temperatures, daily high (red), daily average (green) and daily low (blue), from 1970 to 2000 at this location.   NCDC average monthly precipitation from 1970 to 2000 at this location.
Latitude Longitude 40° 27'  26" N, 111° 28'  22" W
Township Range T4S, R4E  
Datum Not recorded
Uncertainty Polygon diameter (with coordinate as origin): 30" (900 m.)


Synonyms recognized by ITIS (bold taxon is currently accepted):

     Polygonum persicaria L.

     Persicaria maculata (Raf.) S.F. Gray
     Persicaria persicaria (L.) Small
     Persicaria ruderalis (Salisb.) C.F. Reed
     Persicaria ruderalis var. vulgaris (Webb & Moq.) C.F. Reed
     Persicaria vulgaris Webb & Moq.
     Polygonum dubium Stein
     Polygonum fusiforme Greene
     Polygonum minus auct. non Huds.
     Polygonum minus var. subcontinuum (Meisn.) Fern.
     Polygonum persicaria var. angustifolium Beckh.
     Polygonum persicaria var. ruderale (Salisb.) Meisn.
     Polygonum puritanorum Fern.

Common Name(s): ladysthumb, lady's-thumb, ladysthumb smartweed, smartweed, spotted knotweed, spotted ladysthumb, spotted smartweed.

Taxonomic Hierarchy: (ITIS TSN=20915, click for more information and references)

        Kingdom: Plantae
            Subkingdom: Tracheobionta
                Division: Magnoliophyta
                    Class: Magnoliopsida
                        Subclass: Caryophyllidae
                            Order: Polygonales
                                Family: Polygonaceae
                                    Genus: Polygonum
                                        Species: Polygonum persicaria


Available images of this specimen (click to view):
specimen image: 03922s1.jpg

Images of other samples of the same species:
specimen image: 02603s1.jpg 
specimen image: 04481s1.jpg 

Nearby Accessions

Other accessions in the database collected near this one:

Accession Name Dist., dir.
15300 Collinsia parviflora      "maiden blue eyed Mary" 1.2 mi. W
05795 Dodecatheon pulchellum  var. pulchellum   "darkthroat shootingstar" same section
05799 Eleocharis palustris      "common spikerush" same section
05793 Equisetum laevigatum      "smooth horsetail" same section
15299 Hackelia       "stickseed" 1.2 mi. W
05801 Plantago eriopoda      "woolly plantain" same section
05806 Poa pratensis      "Kentucky bluegrass" same section
05797 Ranunculus cymbalaria      "alkali buttercup" same section
03934 Rumex stenophyllus      "narrow-leaf dock" same section
05796 Sisyrinchium idahoense      "Idaho blue-eyed grass" same section
05802 Thermopsis montana      "mountain goldenbanner" same section
05794 Triglochin maritima      "seaside arrowgrass" same section
05800 Valeriana edulis      "tobacco root" same section
05803 Viola nephrophylla      "northern bog violet" same section
05798 Zizia aptera      "heart-leaf Alexanders" same section


Nearby locations from the USGS Geographic Name Information System (GNIS) database:

Name County Dist., dir. Elevation (ft.) 7.5' Quad Name
Daniels Creek (Stream) Wasatch County, UT 1416 ft. N   Twin Peaks 
The Church of Jesus Christ of Latter Day Saints (Church) Wasatch County, UT 0.6 mi. N 5443  Charleston 
Charleston (Populated Place) Wasatch County, UT 0.6 mi. N 5443  Charleston 
Charleston Cemetery (Cemetery) Wasatch County, UT 0.8 mi. E 5519  Charleston 
Lower Charleston Canal (Canal) Wasatch County, UT 1.5 mi. N 5450  Charleston 
Heber Valley (Valley) Wasatch County, UT 1.6 mi. N   Center Creek 
Snake Creek (Stream) Wasatch County, UT 1.8 mi. N   Brighton 
Charleston (Locale) Wasatch County, UT 2 mi. N 5443  Charleston 
Decker Creek (Stream) Wasatch County, UT 1.7 mi. W   Aspen Grove 
Scotts Hollow (Valley) Wasatch County, UT 1.7 mi. W   Aspen Grove 
Upper Charleston Canal (Canal) Wasatch County, UT 2.1 mi. NE 5489  Charleston 
Soldier Hollow (Valley) Wasatch County, UT 1.9 mi. NW   Aspen Grove 
Midway Fish Hatchery (Locale) Wasatch County, UT 2.7 mi. N 5460  Charleston 
Pole Canyon (Valley) Wasatch County, UT 2.4 mi. NW   Aspen Grove 
Big Hollow (Valley) Wasatch County, UT 2.4 mi. E   Charleston 
Epperson Ditch (Canal) Wasatch County, UT 3.1 mi. N 5558  Heber City 
Island Ditch (Canal) Wasatch County, UT 3.1 mi. N 5469  Heber City 
Spring Creek (Stream) Wasatch County, UT 3 mi. NE   Heber City 
Wasatch Mountain State Park (Park) Wasatch County, UT 2.7 mi. NW 5988  Aspen Grove 
Main Creek (Stream) Wasatch County, UT 3.3 mi. S   Twin Peaks 


Taxon Links for species Polygonum persicaria  L.

CalPhotos, Berkeley Digital Library Project

CNPS Manual of California Vegetation Database

USDA Plants database
University of Washington Herbarium: Plants of Washington (images)

Texas A&M University: Image Library (images)

Lady Bird Johnson's Wildflower Center

Google Images

External link to this species in the UVU Herbarium:

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