Utah Valley University Herbarium

Label

 
Accession # 09085 
Family
Family - UVUAPG III FamilyCronquist FamilyA Utah Flora
Family
PolygonaceaePolygonaceaePolygonaceae  
Species Polygonum douglasii Greene
Infraspecific    var. johnstonii Munz
Collector(s)
D.M. Barnes   3765  
   with R. Jolley
Coll. Date 08 July 2003 
Country
State/Province
County
United States
Utah
Box Elder County
Locality Brigham City, Forest road, Bear River Bird Refuge.
     Elev.: 4251 ft. (1296 m.)
Habitat Notes Flood plains of the Great salt Lake, saline soils. 
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° 28'  47" N, 112° 13'  47" W
Datum Not recorded
Uncertainty Not calculated

Taxonomy


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

     Polygonum douglasii ssp. johnstonii (Munz) Hickman

     Polygonum douglasii var. johnstonii Munz
     Polygonum sawatchense Small
     Polygonum triandrum Coolidge
     Polygonum utahense Brenckle & Cottam

Common Name(s): Johnston knotweed, Johnston's knotweed.

Taxonomic Hierarchy: (ITIS TSN=524556, click for more information and references)

        Kingdom: Plantae
            Subkingdom: Tracheobionta
                Division: Magnoliophyta
                    Class: Magnoliopsida
                        Subclass: Caryophyllidae
                            Order: Polygonales
                                Family: Polygonaceae
                                    Genus: Polygonum
                                        Species: Polygonum douglasii
                                            Subspecies: Polygonum douglasii ssp. johnstonii
                                                

Images

Available images of this specimen (click to view):
specimen image: 09085s1.jpg

Images of other samples of the same species:
specimen image: 00538s1.jpg 
00538
specimen image: 00540s1.jpg 
00540
specimen image: 02924s1.jpg 
02924
specimen image: 04355s1.jpg 
04355
specimen image: 04400s1.jpg 
04400
specimen image: 04511s1.jpg 
04511
specimen image: 05419s1.jpg 
05419
specimen image: 05652s1.jpg 
05652
specimen image: 08768s1.jpg 
08768
specimen image: 08772s1.jpg 
08772
specimen image: 11027s1.jpg 
11027
specimen image: 11027f1.jpg 
11027
specimen image: 11853s1.jpg 
11853

Nearby Accessions


Other accessions in the database collected near this one:

Accession Name Dist., dir.
09063 Cressa truxillensis      "spreading alkaliweed" same section
09086 Distichlis spicata      "saltgrass" same section
09084 Matricaria maritima      "mayweed" same section

Locale


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

Name County Dist., dir. Elevation (ft.) 7.5' Quad Name
Bear River Duck Club (Locale) Box Elder County, UT 1193 ft. N 4210  Whistler Canal 
Mueller Lake (Lake) Box Elder County, UT 0.7 mi. N 4213  Whistler Canal 
Kendall Canal (Canal) Box Elder County, UT 0.8 mi. NW 4213  Whistler Canal 
Browns Overflow (Channel) Box Elder County, UT 0.9 mi. NE 4213  Whistler Canal 
Rillas Overflow (Channel) Box Elder County, UT 1 mi. NE 4213  Whistler Canal 
Willow Creek (Stream) Box Elder County, UT 1.3 mi. SE   Whistler Canal 
Stanley McGraw Bay (Bay) Box Elder County, UT 1.5 mi. N 4210  Bear River City 
Bristol Bay (Bay) Box Elder County, UT 1.4 mi. NE 4216  Whistler Canal 
Little Bear Bay (Bay) Box Elder County, UT 1.5 mi. NE 4213  Whistler Canal 
Homestead Bay (Bay) Box Elder County, UT 1.4 mi. E 4213  Whistler Canal 
Duckville Gun Club (Locale) Box Elder County, UT 1.4 mi. W 4210  Mouth of Bear River 
Brownlee Bay (Bay) Box Elder County, UT 1.5 mi. NW 4203  Mouth of Bear River 
Fish Fossil Rocks (Cliff) Box Elder County, UT 1.8 mi. NW 4210  Public Shooting Grounds 
Vallery Bay (Bay) Box Elder County, UT 1.8 mi. NW 4206  Mouth of Bear River 
Pintail Neck (Cape) Box Elder County, UT 1.8 mi. SW 4203  Mouth of Bear River 
Dike Lake (Lake) Box Elder County, UT 1.9 mi. W 4203  Mouth of Bear River 
Bear River Migratory Bird Refuge (Park) Box Elder County, UT 2 mi. SW 4206  Mouth of Bear River 
East Bay (Bay) Box Elder County, UT 2.3 mi. NE 4210  Bear River City 
Bear River National Migratory Bird Refuge (historical) (Park) Box Elder County, UT 2 mi. W 4210  Mouth of Bear River 
Woods Creek (Stream) Box Elder County, UT 2.2 mi. NE   Brigham City 

Links

Taxon Links for species Polygonum douglasii  Greene

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:
http://herbarium.UVU.edu/virtual/search.asp?taxon=Polygonum+douglasii

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