Utah Valley University Herbarium


Accession # 09035 
Family - UVUAPG III FamilyCronquist FamilyA Utah Flora
Species Polygonum aviculare L.
Common name   creeping knotweed
Donna M. Barnes   3719  
   with R. Jolley
Coll. Date 08 July 2003 
United States
Cache County
Locality Wellsville Mountains, [Deep Canyon], along a trail starting at the end of 300 N in Mendon;
     Elev.: 6558 ft. (1999 m.)
Habitat Notes Maple-aspen community. 
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 41° 42'  49" N, 112° 1'  1" W
Datum Not recorded
Uncertainty Polygon diameter (with coordinate as origin): 1' (1800 m.)


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

     Polygonum aviculare L.

     Polygonum aviculare var. vegetum Ledeb.
     Polygonum heterophyllum Lindl.
     Polygonum monspeliense Pers.

Common Name(s): prostrate knotweed, yard knotweed.

Taxonomic Hierarchy: (ITIS TSN=20876, click for more information and references)

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


Available images of this specimen (click to view):
specimen image: 09035s1.jpg

Images of other samples of the same species:
specimen image: 00597s1.jpg 
specimen image: 04710s1.jpg 
specimen image: 04840s1.jpg 
specimen image: 05127s1.jpg 

Nearby Accessions

Other accessions in the database collected near this one:

Accession Name Dist., dir.
09023 Apocynum androsaemifolium  var. androsaemifolium   "spreading dogbane" same section
09030 Bryonia alba      "white bryony" same section
09022 Castilleja rhexiifolia  var. rhexiifolia   "meadow-beauty paintbrush" same section
09033 Circaea alpina  var. pacifica  same section
09026 Conium maculatum      "poison hemlock" same section
13135 Conium maculatum      "poison hemlock" same section
09031 Cystopteris fragilis      "brittle bladder fern" same section
09021 Erigeron speciosus  var. macranthus   "aspen fleabane" same section
09027 Eriogonum umbellatum  var. majus   "sulphur-flowered wild buckwheat" same section
09019 Heuchera parvifolia      "little-leaf alumroot" same section
09025 Iliamna rivularis      "streambank wild hollyhock" same section
13145 Iliamna rivularis      "streambank wild hollyhock" same section
16795 Isatis tinctoria      "Dyer's woad" same section
09028 Isatis tinctoria      "Dyer's woad" same section
16828 Isatis tinctoria      "Dyer's woad" same section
09034 Isatis tinctoria      "Dyer's woad" same section
09029 Leonurus cardiaca      "common motherwort" same section
09024 Lupinus argenteus  var. utahensis   "Utah silky lupine" same section
09036 Sedum lanceolatum      "spearleaf stonecrop" same section
09020 Silene douglasii      "Douglas's catchfly" same section
09032 Viguiera multiflora      "showy goldeneye" same section


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

Name County Dist., dir. Elevation (ft.) 7.5' Quad Name
John Kidman Hollow (Valley) Cache County, UT 1850 ft. N   Honeyville 
Tom Muir Spring (Spring) Cache County, UT 2291 ft. NW 5538  Honeyville 
Fiddlers Hollow (Valley) Cache County, UT 2350 ft. SE   Honeyville 
Chokecherry Flat (Flat) Cache County, UT 0.7 mi. N 5686  Honeyville 
John Kidman Flat (Flat) Cache County, UT 0.7 mi. W 5922  Honeyville 
Straight Hollow (Valley) Cache County, UT 1.1 mi. S   Honeyville 
Willies Hollow (Valley) Cache County, UT 1.3 mi. N   Honeyville 
Dry Hollow (Valley) Cache County, UT 1.4 mi. N   Honeyville 
Thimbleberry Canyon (Valley) Cache County, UT 1.2 mi. SE   Honeyville 
Maple Bench (Bench) Cache County, UT 1.3 mi. SE 5122  Wellsville 
Big Hollow (Valley) Cache County, UT 1.6 mi. N   Honeyville 
Deep Gorge Spring (Spring) Cache County, UT 1.6 mi. N 4800  Honeyville 
Stauffer Canyon (Valley) Cache County, UT 1.5 mi. SW   Honeyville 
Coldwater Spring (Spring) Cache County, UT 1.7 mi. N 4810  Honeyville 
Kidman Canyon (Valley) Cache County, UT 1.5 mi. SW   Honeyville 
Baker Canyon (Valley) Cache County, UT 1.6 mi. SW   Honeyville 
Deep Canyon (Valley) Cache County, UT 1.6 mi. E   Honeyville 
Yonk Spring (Spring) Cache County, UT 2.1 mi. N 4800  Honeyville 
Yonk Canyon (Valley) Cache County, UT 2 mi. N   Honeyville 
Bird Canyon (Valley) Cache County, UT 1.7 mi. SE   Honeyville 


Taxon Links for species Polygonum aviculare  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:

Zooming out might reveal more collections in other states.

Note: Printing this page will show all information sequentially.   edit