Utah Valley University Herbarium


Accession # 08260 
Family - UVUAPG III FamilyCronquist FamilyA Utah Flora
Species Yucca brevifolia Engelm.
Common name   Joshua tree
Donna M. Barnes   3166  
   with K.T. Harper
Coll. Date 28 April 2003 
United States
Washington County
Locality Jackson Well Road, ca. 4 road miles S of the junction with the Motoqua Road;
     Elev.: 3487 ft. (1063 m.)
Habitat Notes Joshua tree forest. 
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° 15'  30" N, 113° 58'  2" W
Datum Not recorded
Uncertainty Polygon diameter (with coordinate as origin): 1' (1800 m.)


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

     Yucca baccata var. brevifolia (Schott ex Torr.) L. Benson & Darrow

     Yucca arizonica McKelvey
     Yucca brevifolia Schott ex Torr.
     Yucca confinis McKelvey
     Yucca thornberi McKelvey
     Yucca treleasei J.F. Macbr.

Common Name(s): Spanish dagger, Izote de Arizona, Joshua tree.

Taxonomic Hierarchy: (ITIS TSN=530889, click for more information and references)

        Kingdom: Plantae
            Subkingdom: Tracheobionta
                Division: Magnoliophyta
                    Class: Liliopsida
                        Subclass: Liliidae
                            Order: Liliales
                                Family: Agavaceae
                                    Genus: Yucca
                                        Species: Yucca baccata
                                            Variety: Yucca baccata var. brevifolia


Available images of this specimen (click to view):
specimen image: 08260a1.jpg specimen image: 08260b1.jpg specimen image: 08260s3.jpg

Images of other samples of the same species:
specimen image: 04189s1.jpg 

Nearby Accessions

Other accessions in the database collected near this one:

Accession Name Dist., dir.
11488 Centrostegia thurberi      "Thurber's spineflower" 1.2 mi. NW
11497 Cryptantha barbigera      "bearded forget-me-not" 1.2 mi. NW
11496 Cryptantha micrantha      "purple-rooted forget-me-not" 1.2 mi. NW
11490 Cryptantha pterocarya  var. pterocarya   "winged-nut forget-me-not" 1.2 mi. NW
11486 Eriastrum diffusum      "miniature woollystar" 1.2 mi. NW
14473 Eriogonum fasciculatum      "Eastern Mojave wild buckwheat" 1.9 mi. NE
14474 Eriogonum fasciculatum  var. polifolium   "Eastern Mojave wild buckwheat" 1.9 mi. NE
11494 Eriogonum maculatum      "spotted wild buckwheat" 1.2 mi. NW
11480 Eriogonum nidularium      "birdnest wild buckwheat" 1.2 mi. NW
11487 Eriophyllum wallacei      "Wallace's easter bonnets" 1.2 mi. NW
11489 Gilia brecciarum  subsp. brecciarum   "Nevada gilia" 1.2 mi. NW
11493 Lupinus sparsiflorus      "Coulter's lupine" 1.2 mi. NW
11482 Malacothrix glabrata      "smooth desert-dandelion" 1.2 mi. NW
11483 Oenothera primiveris  var. bufonis  1.2 mi. NW
11495 Pectocarya setosa      "bristly combseed" 1.2 mi. NW
11485 Phacelia fremontii      "Fremont's scorpionweed" 1.2 mi. NW
11484 Plantago insularis      "desert plantain" 1.2 mi. NW
11491 Salvia columbariae      "chia" 1.2 mi. NW
11481 Schismus barbatus      "Mediterranean grass" 1.2 mi. NW
11492 Silene antirrhina      "sleepy silene" 1.2 mi. NW


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

Name County Dist., dir. Elevation (ft.) 7.5' Quad Name
Red Hollow (Valley) Juab County, UT 1.2 mi. SE   Motoqua 
Bentley Wash (Valley) Washington County, UT 1.7 mi. NW   Motoqua 
Bentley Spring (Spring) Washington County, UT 2.3 mi. NW 3409  Motoqua 
Jackson Wash (Valley) Juab County, UT 2.6 mi. SW   Gunlock 
Red Hollow Reservoir (Reservoir) Washington County, UT 2.8 mi. NE 3957  Motoqua 
Jackson Well (Well) Washington County, UT 3.1 mi. SW 3133  West Mountain Peak 
Red Hollow Spring (Spring) Washington County, UT 3.5 mi. NE 4062  Motoqua 
Motoqua (Populated Place) Washington County, UT 3.6 mi. N 3481  Motoqua 
Mormon Range (Range) Washington County, UT 3.9 mi. N 3694  Motoqua 
East Fork Beaver Dam Wash (Valley) Washington County, UT 4 mi. N   Maple Ridge 
Scarecrow Peak (Summit) Washington County, UT 4 mi. SW 4400  Scarecrow Peak 
Nordin Ranch (Locale) Washington County, UT 5.1 mi. N 3822  Motoqua 
Jackson Spring (Spring) Washington County, UT 4.4 mi. E 3963  Motoqua 
East Bunker Peak Wash (Valley) Washington County, UT 5.4 mi. N   Bunker Peak 
East Bunker Peak Wash (Stream) Lincoln County, NV 5.4 mi. N   Docs Pass 
Dodge Spring (Spring) Washington County, UT 5.2 mi. N 3973  Dodge Spring 
Horse Canyon (Valley) Washington County, UT 5.4 mi. SW   West Mountain Peak 


Taxon Links for species Yucca brevifolia  Engelm.

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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