Utah Valley University Herbarium


Accession # 00063 
Family - UVUAPG III FamilyCronquist FamilyA Utah Flora
Species Descurainia pinnata (Walter) Britton
Infraspecific    var. osmiarum (Cockerell) Shinners
J.G. Harris   1880  
Coll. Date 07 May 1988 
United States
Emery County
Locality San Rafael Swell, Wedge Overlook.
     Elev.: 6248 ft. (1905 m.)
Habitat Notes pinyon-juniper 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 39° 5'  48" N, 110° 44'  59" W
Township Range T20S, R11E, Sec. 6  
Datum Not recorded
Uncertainty Not calculated


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

     Descurainia pinnata ssp. halictorum (Cockerell) Detling

     Descurainia halictorum var. andrenarium (Cockerell) O.E. Schulz
     Descurainia pinnata var. halictorum (Cockerell) M.E. Peck
     Descurainia pinnata var. osmiarum (Cockerell) Shinners
     Sophia andrenarium Cockerell
     Sophia andrenarium var. osmiarum Cockerell
     Sophia halictorum Cockerell

Common Name(s): western tansy mustard, western tansymustard.

Taxonomic Hierarchy: (ITIS TSN=22831, click for more information and references)

        Kingdom: Plantae
            Subkingdom: Tracheobionta
                Division: Magnoliophyta
                    Class: Magnoliopsida
                        Subclass: Dilleniidae
                            Order: Capparales
                                Family: Brassicaceae
                                    Genus: Descurainia
                                        Species: Descurainia pinnata
                                            Subspecies: Descurainia pinnata ssp. halictorum


Available images of this specimen (click to view):
specimen image: 00063s3.jpg

Images of other samples of the same species:
specimen image: 00064s3.jpg 
specimen image: 00912s3.jpg 
specimen image: 01008s3.jpg 
specimen image: 02665s4.jpg 
specimen image: 06087s3.jpg 
specimen image: 06728s3.jpg 
specimen image: 06872s3.jpg 
specimen image: 08189s3.jpg 
specimen image: 08642s2.jpg 
specimen image: 08718s3.jpg 
specimen image: 09322s3.jpg 
specimen image: 11070s3.jpg 
specimen image: 11291s3.jpg 
specimen image: 11352s1.jpg 
specimen image: 11474f1.jpg 
specimen image: 13592s1.jpg 
specimen image: 13646s1.jpg 
specimen image: 13717s1.jpg 

Nearby Accessions

Other accessions in the database collected near this one:

Accession Name Dist., dir.
02879 Allium macropetalum      "large-flowered wild onion" 1.1 mi. W
00043 Boechera selbyi     same section
10938 Chamaechaenactis scaposa      "fullstem" 586 ft. E
03152 Collema tenax      "jelly lichen" same section
00064 Descurainia pinnata  var. osmiarum  same section
01823 Ephedra viridis  var. viridis  same section
10936 Eremogone eastwoodiae      "Eastwood's sandwort" 586 ft. E
14562 Eriogonum shockleyi      "Shockley's wild buckwheat" 810 ft. NW
14563 Hymenoxys acaulis      "stemless four-nerve daisy" 810 ft. NW
14565 Hymenoxys acaulis      "stemless four-nerve daisy" 810 ft. NW
10937 Hymenoxys acaulis  var. arizonica   "Arizona four-nerve daisy" 586 ft. E
00053 Juniperus osteosperma      "Utah juniper" same section
10935 Penstemon carnosus      "fleshy beardtongue" 586 ft. E
14564 Phlox pulvinata      "cushion phlox" 810 ft. NW
01822 Pinus edulis      "Colorado pinyon pine" same section
10939 Polygala subspinosa      "spiny milkwort" 586 ft. E
03165 Psora decipiens      "fishscale lichen" same section
00060 Streptanthella longirostris      "long-beaked streptanthella" same section
00052 Streptanthus cordatus  var. cordatus   "heart-leaf twistflower" same section
00042 Streptanthus cordatus  var. cordatus   "heart-leaf twistflower" 586 ft. E


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

Name County Dist., dir. Elevation (ft.) 7.5' Quad Name
Wedge Pond Number 4 (Lake) Emery County, UT 0.9 mi. N 6132  Sids Mountain 
Cane Wash (Valley) Emery County, UT 1 mi. E   The Blocks 
Good Water Canyon (Valley) Emery County, UT 1 mi. E   Bottleneck Peak 
Little Grand Canyon (Valley) Emery County, UT 1 mi. E   Sids Mountain 
The Wedge Overlook (Locale) Emery County, UT 1.4 mi. NE 6178  Bottleneck Peak 
Virgin Spring Canyon (Valley) Emery County, UT 1.6 mi. SW   Sids Mountain 
Wedge Pond Number 2 (Lake) Emery County, UT 2.1 mi. W 5978  Sids Mountain 
Wedge Overlook (Locale) Emery County, UT 2.9 mi. N 5919  Buckhorn Reservoir 
The Wedge (Plain) Emery County, UT 3 mi. N 5968  Bob Hill Knoll 
Wedge Pond Number 1 (Lake) Emery County, UT 2.8 mi. N 5843  Buckhorn Reservoir 
Aldys Hole (Lake) Emery County, UT 3.3 mi. N 5889  Bob Hill Knoll 
Swazy Hole (Lake) Emery County, UT 3.7 mi. N 5725  Bob Hill Knoll 
Chalk Hills (Summit) Emery County, UT 3.4 mi. NW 5758  Buckhorn Reservoir 
Cloyds Pond (Lake) Emery County, UT 4 mi. N 5722  Buckhorn Reservoir 
Sids Mountain (Summit) Emery County, UT 4.1 mi. S 6457  Sids Mountain 
North Salt Wash (Valley) Emery County, UT 3.4 mi. W   Short Canyon 
No Mans Mountain (Summit) Emery County, UT 4.4 mi. S 6526  Bottleneck Peak 
Furniture Draw (Valley) Emery County, UT 4.7 mi. N   Bob Hill Knoll 
Bottleneck Peak (Summit) Emery County, UT 4.2 mi. SE 6349  Bottleneck Peak 
Drought Relief Reservoir (Reservoir) Emery County, UT 5 mi. N 5588  Buckhorn Reservoir 


Taxon Links for species Descurainia pinnata  (Walter) Britton

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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