Utah Valley University Herbarium


Accession # 15419 
Family - UVUAPG III FamilyCronquist FamilyA Utah Flora
Species Larrea tridentata (DC.) Coville
Common name   creosote bush
Aaron Searle   16  
Coll. Date 13 September 2008 
United States
Washington County
Locality Harrisburg vicinity, 0.2 km E of I-15, S of the Red Cliffs Campground Road;
     Elev.: 3000 ft. (914 m.)
Habitat Notes with Larrea tridentata, Krameria erecta, Propsopis glandulosa. 
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° 12'  20.93" N, 113° 23'  40.35" W
Datum WGS84 
Uncertainty Polygon diameter (with coordinate as origin): GPS
Georef. Notes This coordinate was obtained by a GPS unit and an error estimate was not recorded by the user. However due to the accuracy of most units, a polygon diameter between 25 and 250 meters could reasonably be assumed.


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

     Larrea tridentata (Sessť & Moc. ex DC.) Coville

     Larrea mexicana Moric.

Common Name(s): creosote bush, creosotebush.

Taxonomic Hierarchy: (ITIS TSN=29051, click for more information and references)

        Kingdom: Plantae
            Subkingdom: Tracheobionta
                Division: Magnoliophyta
                    Class: Magnoliopsida
                        Subclass: Rosidae
                            Order: Sapindales
                                Family: Zygophyllaceae
                                    Genus: Larrea
                                        Species: Larrea tridentata


Images of other samples of the same species:
specimen image: 00154s1.jpg 
specimen image: 02548s1.jpg 
specimen image: 02660s1.jpg 
specimen image: 02894s1.jpg 
specimen image: 02967s1.jpg 
specimen image: 03630s1.jpg 
specimen image: 04044s1.jpg 
specimen image: 04230s1.jpg 
specimen image: 08176s1.jpg 
specimen image: 08307s1.jpg 

Nearby Accessions

Other accessions in the database collected near this one:

Accession Name Dist., dir.
14247 Acamptopappus sphaerocephalus      "goldenhead" 1.5 mi. S
14245 Ambrosia dumosa      "common bur-sage" 1.5 mi. S
08912 Amsinckia intermedia     1.4 mi. NE
04192 Amsinckia tessellata      "bristly fiddleneck" 1 mi. NW
08390 Anemopsis californica      "yerba mansa" 1.3 mi. N
13188 Astragalus amphioxys  var. amphioxys   "crescent milkvetch" 2.1 mi. N
13187 Astragalus ampullarioides     2.1 mi. N
13186 Astragalus flavus  var. higginsii  2.1 mi. N
12542 Astragalus lentiginosus      "freckled milkvetch" 1.3 mi. N
08907 Astragalus nuttallianus  var. imperfectus   "Mojave small-flowered milkvetch" 1.4 mi. NE
14243 Atriplex canescens  var. canescens   "four-winged saltbush" 2561 ft. NE
14242 Atriplex canescens  var. canescens   "four-winged saltbush" 2561 ft. NE
14240 Baccharis salicina      "false willow" 1.7 mi. N
05271 Baccharis sergiloides      "desert seep-willow" 1.5 mi. NE
08906 Brickellia longifolia      "long-leaf brickellbush" 1.4 mi. NE
05272 Brickellia longifolia      "long-leaf brickellbush" 1.8 mi. NE
08918 Bromus diandrus      "great brome" 1.4 mi. NE
02982 Chamaesyce fendleri      "Fendler's sandmat" same section
15266 Chilopsis linearis      "desert willow" 865 ft. W
05699 Chrysothamnus paniculatus      "Mojave rabbitbrush" 1.8 mi. NE
08913 Croton californicus      "California croton" 1.4 mi. NE
14244 Croton californicus      "California croton" 2561 ft. NE
12535 Croton californicus      "California croton" 1.2 mi. N
04213 Cymopterus multinervatus      "purple-nerved spring parsley" 1.6 mi. S
13189 Cymopterus purpureus  var. purpureus   "purple spring parsley" 2.1 mi. N
04217 Dichelostemma pulchellum      "bluedicks" 1.6 mi. S
08914 Encelia frutescens  var. virginensis   "Virgin River brittlebush" 1.4 mi. NE
15422 Ephedra nevadensis      "Nevada ephedra" same section
13190 Ephedra viridis      "green ephedra" 2.1 mi. N
14239 Ericameria nauseosa  var. juncea  1.7 mi. N
02977 Eriogonum fusiforme      "Grand Valley desert trumpet" same section
13205 Eriogonum subreniforme      "kidney-leaf wild buckwheat" 2.1 mi. N
03017 Eschscholzia minutiflora      "pygmy poppy" 2.1 mi. N
08908 Fraxinus anomala      "single-leaf ash" 1.4 mi. NE
08911 Fraxinus velutina      "velvet ash" 1.4 mi. NE
08910 Gaura coccinea      "scarlet beeblossom" 1.4 mi. NE
00164 Hymenopappus filifolius  var. cinereus   "common woollywhite" 1.6 mi. NW
15421 Krameria erecta      "little-leaf ratany" same section
14241 Krameria erecta      "little-leaf ratany" 2561 ft. NE
15265 Larrea tridentata      "creosote bush" 865 ft. W
04197 Lotus humistratus      "foothill deervetch" 1 mi. NW
00157 Lupinus sericeus  var. barbiger   "bearded silky lupine" 1.6 mi. NW
02975 Mentzelia       "blazingstar" same section
04198 Mentzelia albicaulis      "whitestem blazingstar" 1 mi. NW
04199 Mirabilis multiflora      "Colorado four o'clock" 1 mi. NW
05273 Morus alba      "white mulberry" 597 ft. NW
04195 Nama demissum      "purplemat" 1 mi. NW
05728 Opuntia echinocarpa     686 ft. NE
05718 Opuntia phaeacantha  var. discata  686 ft. NE
08921 Opuntia phaeacantha  var. major  1.4 mi. NE
03009 Phacelia cephalotes      "virgin scorpionweed" 1.9 mi. N
04196 Phacelia cephalotes      "virgin scorpionweed" 1 mi. NW
08905 Phacelia cryptantha      "hidden-flower scorpionweed" 1.4 mi. NE
04200 Phacelia fremontii      "Fremont's scorpionweed" 1 mi. NW
05686 Pluchea sericea      "arrow weed" 1.5 mi. NE
14237 Pluchea sericea      "arrow weed" 1.7 mi. N
08755 Pluchea sericea      "arrow weed" 1.4 mi. NE
15264 Prosopis glandulosa      "honey mesquite" 865 ft. W
15420 Prosopis glandulosa      "honey mesquite" same section
14238 Prosopis glandulosa  var. torreyana   "western honey mesquite" 1.7 mi. N
05698 Prosopis odorata     1.5 mi. NE
04216 Quercus turbinella      "Sonoran scrub oak" 1.6 mi. S
08915 Rafinesquia californica      "California chicory" 1.4 mi. NE
05769 Stephanomeria exigua      "small wirelettuce" same section
14246 Tetradymia axillaris      "longspine horsebrush" 1.5 mi. S
14527 Thymophylla acerosa      "prickly-leaf dogweed" 1.3 mi. N
08917 Triticum aestivum      "cultivated wheat" 1.4 mi. NE
14248 Xylorhiza tortifolia  var. tortifolia   "Mojave woody aster" 1.5 mi. S
00156 Yucca utahensis      "Utah narrow-leaf yucca" 1.6 mi. NW
08919 Yucca utahensis      "Utah narrow-leaf yucca" 1.4 mi. NE


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

Name County Dist., dir. Elevation (ft.) 7.5' Quad Name
Harrisburg (Populated Place) Washington County, UT 42 ft. E 3009  Harrisburg Junction 
Harrisburg Flat (Flat) Washington County, UT 2588 ft. W 3084  Harrisburg Junction 
Leeds Creek (Stream) Washington County, UT 0.8 mi. N   Signal Peak 
Water Canyon (Valley) Washington County, UT 1.4 mi. N   Signal Peak 
Red Cliffs Campground (Locale) Washington County, UT 1.5 mi. N 3265  Harrisburg Junction 
Little Purgatory (Area) Washington County, UT 1.2 mi. E 3340  Hurricane 
Cottonwood Hill (Summit) Washington County, UT 1.4 mi. SW 3166  Harrisburg Junction 
Red Reef (Ridge) Washington County, UT 1.5 mi. N 3232  Harrisburg Junction 
Leeds Reef (Ridge) Washington County, UT 1.6 mi. NE 3356  Harrisburg Junction 
Dicks Canyon (Valley) Washington County, UT 1.8 mi. N   Harrisburg Junction 
Harrisburg Bench (Bench) Washington County, UT 1.9 mi. S 3501  Harrisburg Junction 
Harrisburg Gap (Gap) Washington County, UT 2.2 mi. S 2792  Harrisburg Junction 
Harrisburg Canyon (Valley) Washington County, UT 2.2 mi. S   Harrisburg Junction 
Harrisburg Creek (Stream) Washington County, UT 2.2 mi. S   Harrisburg Junction 
Quail Creek (Stream) Washington County, UT 2.2 mi. S   Signal Peak 
Cobb Mine (Mine) Washington County, UT 2.3 mi. N 3645  Harrisburg Junction 
White Reef (Ridge) Washington County, UT 2.3 mi. N 3566  Harrisburg Junction 
Cottonwood Canyon (Valley) Washington County, UT 2.1 mi. SW   Harrisburg Junction 
Leeds Cemetery (Cemetery) Washington County, UT 2.6 mi. NE 3416  Hurricane 
Berry Spring (Spring) Washington County, UT 2.8 mi. S 2809  Harrisburg Junction 


Taxon Links for species Larrea tridentata  (DC.) Coville

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