Utah Valley University Herbarium


Accession # 10662 
Family - UVUAPG III FamilyCronquist FamilyA Utah Flora
Species Prenanthella exigua (A. Gray) Rydb.
Common name   thorny skeleton plant
Donna M. Barnes   4573  
Coll. Date 09 June 2005 
United States
Sevier County
Locality Fremont Junction road, S of I-70, foothill of rock escarpment SE of the road, [E of Fremont Junction];
     Elev.: 6160 ft. (1878 m.)
Habitat Notes salt desert shrub community. 
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 38° 46'  26.16" N, 111° 19'  30" 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):

     Prenanthella exigua (Gray) Rydb.

     Lygodesmia exigua (Gray) Gray

Common Name(s): brightwhite, feeble prenanthela.

Taxonomic Hierarchy: (ITIS TSN=38267, click for more information and references)

        Kingdom: Plantae
            Subkingdom: Tracheobionta
                Division: Magnoliophyta
                    Class: Magnoliopsida
                        Subclass: Asteridae
                            Order: Asterales
                                Family: Asteraceae
                                    Genus: Prenanthella
                                        Species: Prenanthella exigua


Available images of this specimen (click to view):
specimen image: 10662s2.jpg

Images of other samples of the same species:
specimen image: 02381s3.jpg 
specimen image: 02419s2.jpg 
specimen image: 02520s2.jpg 
specimen image: 05937s2.jpg 
specimen image: 06025s2.jpg 
specimen image: 10257s2.jpg 
specimen image: 13275s1.jpg 

Nearby Accessions

Other accessions in the database collected near this one:

Accession Name Dist., dir.
10666 Aliciella tenuis      "Mussentuchit Creek gilia" 1238 ft. E
10670 Astragalus ceramicus  var. ceramicus   "painted milkvetch" 1238 ft. E
10660 Atriplex gardneri  var. cuneata  same section
10665 Atriplex gardneri  var. utahensis   "Utah saltbush" 1238 ft. E
10659 Cleomella palmeriana      "Rocky Mountain stickweed" same section
10656 Comandra umbellata      "bastard toadflax" 1238 ft. E
10655 Cryptantha flava      "yellow cat's eye" 1238 ft. E
10661 Erigeron pulcherrimus      "plateau fleabane" same section
10668 Eriogonum corymbosum  var. corymbosum   "crisp-leaf wild buckwheat" 1238 ft. E
10651 Eriogonum hookeri      "Hooker's wild buckwheat" same section
10664 Eriogonum leptocladon  var. ramosissimum   "San Juan wild buckwheat" 1238 ft. E
10739 Eriogonum microthecum  var. simpsonii   "Simpson's wild buckwheat" 1238 ft. E
10657 Gaillardia spathulata      "Colorado Plateau blanketflower" 1238 ft. E
10669 Hymenopappus filifolius  var. cinereus   "common woollywhite" 1238 ft. E
10663 Ipomopsis pumila      "dwarf gilia" same section
10658 Platyschkuhria integrifolia  var. desertorum   "desert basin-daisy" 1238 ft. E
10667 Sporobolus airoides  var. airoides   "alkali sacaton" 1238 ft. E
10740 Thelypodiopsis divaricata     same section


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

Name County Dist., dir. Elevation (ft.) 7.5' Quad Name
Ivie Creek Bench (Bench) Sevier County, UT 2710 ft. N 6569  Walker Flat 
Windy Peak (Summit) Sevier County, UT 1.3 mi. SE 6746  Walker Flat 
Peacocks Place (historical) (Locale) Sevier County, UT 1.7 mi. N 6195  Walker Flat 
Oak Spring Creek (Stream) Sevier County, UT 2.2 mi. N   Old Woman Plateau 
Saleratus Creek (Stream) Sevier County, UT 2.5 mi. N   Old Woman Plateau 
Gilson Valley (Valley) Sevier County, UT 2.4 mi. N   Old Woman Plateau 
Trough Hollow Creek (Stream) Sevier County, UT 2.9 mi. N   Old Woman Plateau 
Trough Hollow (Valley) Sevier County, UT 2.9 mi. N   Old Woman Plateau 
Jensen Place (historical) (Locale) Sevier County, UT 3.2 mi. N 6158  Walker Flat 
North Hollow (Valley) Sevier County, UT 3.4 mi. S   Willow Springs 
Post Hollow (Valley) Sevier County, UT 2.8 mi. W   Johns Peak 
Willow Springs (Spring) Sevier County, UT 3.5 mi. S 6250  Willow Springs 
Dog Valley Mine (Mine) Emery County, UT 2.9 mi. E 6437  Walker Flat 
Coal Wash (Valley) Emery County, UT 3.7 mi. NE   Walker Flat 
Fremont Junction (Populated Place) Sevier County, UT 3.3 mi. W 6815  Old Woman Plateau 
Jims Farm (Flat) Sevier County, UT 3.7 mi. SW 6959  Johns Peak 
North Fork Indian Canyon (Valley) Sevier County, UT 4.3 mi. S   Willow Springs 
Indian Canyon (Valley) Sevier County, UT 4.4 mi. S   Willow Springs 
Walker Flat (Flat) Sevier County, UT 4.6 mi. N 6149  Walker Flat 
Oak Spring Ranch (Locale) Sevier County, UT 3.7 mi. W 6690  Old Woman Plateau 


Taxon Links for species Prenanthella exigua  (A. Gray) Rydb.

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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