Utah Valley University Herbarium


Accession # 05730 
Family - UVUAPG III FamilyCronquist FamilyA Utah Flora
Species Aristida arizonica Vasey
Common name   Arizona threeawn
Donna M. Barnes   1077  
Coll. Date 15 June 2001 
United States
Washington County
Locality Watchman Campground, Hwy 9, [just inside the south entrance to Zion National Park].
     Elev.: 4000 ft. (1220 m.)
Habitat Notes [the glumes are consistently equal to subequal, J. Alexander, January 2010]. 
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 37° 11'  35" N, 112° 59'  18" W
Township Range T41S R10W Sec. 28  
Datum Not recorded
Uncertainty Polygon diameter (with coordinate as origin): 1' (1800 m.)
TRS Notes Latitude and longitude were derived from township and range information and may be
inaccurate by as much as 0.7 miles (or 4.2 miles if the section is not given).


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

     Aristida arizonica Vasey

Common Name(s): Arizona threeawn.

Taxonomic Hierarchy: (ITIS TSN=41410, click for more information and references)

        Kingdom: Plantae
            Subkingdom: Tracheobionta
                Division: Magnoliophyta
                    Class: Liliopsida
                        Subclass: Commelinidae
                            Order: Cyperales
                                Family: Poaceae
                                    Genus: Aristida
                                        Species: Aristida arizonica


Available images of this specimen (click to view):
specimen image: 05730s3.jpg

Nearby Accessions

Other accessions in the database collected near this one:

Accession Name Dist., dir.
02866 Astragalus praelongus  var. praelongus   "stinking milkvetch" 1.4 mi. NW
02478 Comandra umbellata     1200 ft. NW
05732 Cupressus arizonica      "Arizona cypress" same section
05731 Machaeranthera canescens      "gray tansy aster" same section
05735 Petradoria pumila  var. pumila   "common rock goldenrod" same section


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

Name County Dist., dir. Elevation (ft.) 7.5' Quad Name
Watchman Campground (Locale) Washington County, UT 1112 ft. N 3914  Springdale East 
Blacks Canyon (Valley) Washington County, UT 1196 ft. W   Springdale West 
Moquitch Hill (Summit) Washington County, UT 1999 ft. W 3996  Springdale East 
South Entrance (Locale) Washington County, UT 0.6 mi. N 3911  Springdale East 
South Campground (Locale) Washington County, UT 0.6 mi. N 3927  Springdale East 
The Church of Jesus Christ of Latter Day Saints (Church) Washington County, UT 0.6 mi. SW 3898  Springdale East 
Springdale (Populated Place) Washington County, UT 0.6 mi. SW 3895  Springdale East 
Point Petty (Cape) Washington County, UT 0.7 mi. NW 4554  Springdale East 
Springdale School (School) Washington County, UT 0.7 mi. W 3904  Springdale East 
The Watchman (Summit) Washington County, UT 0.8 mi. SE 6293  Springdale East 
Watchman Residential Area (Populated Place) Washington County, UT 0.8 mi. NE 3963  Springdale East 
Springdale Cemetery (Cemetery) Washington County, UT 0.7 mi. W 3990  Springdale West 
Zion Nature Center (Locale) Washington County, UT 0.9 mi. N 3970  Springdale East 
Zion Lodge (Locale) Washington County, UT 1.1 mi. N 4003  Springdale East 
Oak Creek (Stream) Washington County, UT 1 mi. NE   Springdale West 
Watchman Trail (Trail) Washington County, UT 1 mi. NE 4311  Springdale East 
Oak Creek Residential Area (Populated Place) Washington County, UT 1.2 mi. N 4042  Springdale East 
Zion Canyon Visitor Center (Locale) Washington County, UT 1.2 mi. N 3983  Springdale East 
Obert C Tanner Amphitheater (Basin) Washington County, UT 1.1 mi. NW 4154  Springdale West 
Johnson Mountain (Summit) Washington County, UT 1.3 mi. S 5994  Springdale East 


Taxon Links for species Aristida arizonica  Vasey

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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