Utah Valley University Herbarium


Accession # 14274 
Family - UVUAPG III FamilyCronquist FamilyA Utah Flora
Species Penstemon ambiguus Torr.
Common name   shrubby sand beardtongue
R. Van Buren   931  
   with J. Cooper
Coll. Date 20 July 2005 
United States
Locality Santa Clara Bench, S side of Utah Highway 8, ca. 1 mile NW of junction with Kayenta Parkway, W of Ivins Reservoir;
     Elev.: 3166 ft. (965 m.)
Habitat Notes in sand; 
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° 10'  53.1" N, 113° 43'  19.83" 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.
Voucher Voucher for "Woody Plants of Utah" by R. Van Buren, K.T. Harper, J. Cooper 
Specimen Notes Journal Code: L20S1. 


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

     Penstemon ambiguus Torr.

Common Name(s): bush penstemon, gilia beardtongue, gilia penstemon.

Taxonomic Hierarchy: (ITIS TSN=33808, click for more information and references)

        Kingdom: Plantae
            Subkingdom: Tracheobionta
                Division: Magnoliophyta
                    Class: Magnoliopsida
                        Subclass: Asteridae
                            Order: Scrophulariales
                                Family: Scrophulariaceae
                                    Genus: Penstemon
                                        Species: Penstemon ambiguus


Images of other samples of the same species:
specimen image: 02946s1.jpg 
specimen image: 04295s1.jpg 
specimen image: 09996s1.jpg 
specimen image: 16897s1.jpg 
specimen image: 16897d1.jpg 
specimen image: 16897c1.jpg 
specimen image: 16897b1.jpg 
specimen image: 16897a1.jpg 

Nearby Accessions

Other accessions in the database collected near this one:

Accession Name Dist., dir.
17911 Acamptopappus       "goldenhead" same section
17912 Ambrosia salsola      "burrobush" same section
04179 Arctostaphylos pungens      "pointleaf manzanita" 1.5 mi. SW
14809 Baccharis salicifolia      "sticky seep-willow" 1687 ft. W
05283 Cucurbita foetidissima      "Missouri gourd" 1.2 mi. E
02963 Cuscuta denticulata      "desert dodder" same section
05269 Datura stramonium      "jimsonweed" 1.2 mi. E
15904 Datura stramonium      "jimsonweed" 1.2 mi. E
17910 Ephedra nevadensis      "Nevada ephedra" same section
02966 Eriogonum fasciculatum  var. polifolium   "Eastern Mojave wild buckwheat" same section
17914 Gutierrezia       "snakeweed" same section
05589 Heliotropium curassavicum  var. oculatum   "seaside heliotrope" 1.6 mi. SW
05594 Heterotheca subaxillaris      "camphorweed" 1.6 mi. SW
02967 Larrea tridentata      "creosote bush" same section
04178 Lycium andersonii      "Anderson's desert-thorn" 1.5 mi. SW
02946 Penstemon ambiguus  var. laevissimus   "shrubby sand beardtongue" same section
05267 Prosopis glandulosa      "honey mesquite" 1.2 mi. E
15948 Prosopis glandulosa      "honey mesquite" 1.2 mi. E
17913 Psorothamnus fremontii      "Fremont's dalea" same section
02995 Psorothamnus fremontii      "Fremont's dalea" same section
14810 Robinia neomexicana      "New Mexico locust" 1.1 mi. E
08306 Sophora stenophylla      "fringe-leaf necklacepod" 2101 ft. NE
05588 Tidestromia oblongifolia      "Arizona honeysweet" 1.6 mi. SW
02947 Viguiera multiflora  var. nevadensis   "Nevada goldeneye" same section
11315 Vitis arizonica      "canyon grape" 1.2 mi. E


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

Name County Dist., dir. Elevation (ft.) 7.5' Quad Name
Ivins Bench Reservoir (Reservoir) Washington County, UT 2816 ft. SE 3087  Santa Clara 
Ivins Bench Dam (Dam) Washington County, UT 2816 ft. SE 3087  Santa Clara 
Ivins Reservoir (Reservoir) Washington County, UT 2817 ft. E 3094  Santa Clara 
Santa Clara Bench (Bench) Washington County, UT 0.7 mi. N 3281  Santa Clara 
Upper Santa Clara Bench Canal (Canal) Washington County, UT 1.1 mi. NE 3212  Santa Clara 
Dry Wash (Valley) Washington County, UT 1.6 mi. SE   Santa Clara 
Shivwits (Populated Place) Washington County, UT 1.9 mi. W 3202  Shivwits 
Lower Santa Clara Bench Canal (Canal) Washington County, UT 2.3 mi. SE 3035  Santa Clara 
Wittwer Canyon (Valley) Washington County, UT 2.6 mi. S   Shivwits 
Hellhole (Basin) Washington County, UT 2.4 mi. NE 3429  Santa Clara 
Land Hill (Summit) Washington County, UT 2.8 mi. SE 3268  Santa Clara 
The Church of Jesus Christ of Latter Day Saints (Church) Washington County, UT 2.5 mi. SE 3081  Santa Clara 
Ivins (Populated Place) Washington County, UT 2.5 mi. SE 3081  Santa Clara 
Shem (Populated Place) Washington County, UT 2.7 mi. W 3297  Shivwits 
Paiute Indian Reservation (Reserve) Washington County, UT 2.9 mi. W 3566  Shivwits 
Red Mountains (Range) Washington County, UT 3.3 mi. NE 4705  Santa Clara 
Camp Spring (Spring) Washington County, UT 3.1 mi. W 3452  Shivwits 
Pahcoon Spring Wash (Valley) Washington County, UT 3.2 mi. W   Gunlock 
Santa Clara City Cemetery (Cemetery) Washington County, UT 4.1 mi. SE 2927  Santa Clara 
South Hills (Summit) Washington County, UT 4.4 mi. SE 3370  White Hills 


Taxon Links for species Penstemon ambiguus  Torr.

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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