Utah Valley University Herbarium


Accession # 12559 
Family - UVUAPG III FamilyCronquist FamilyA Utah Flora
Species Pterostegia drymarioides Fisch. & C.A. Mey.
Common name   woodland pterostegia
R. Van Buren   766  
   with J. Cooper, K.T. Harper
Coll. Date 02 June 2005 
United States
Wayne County
Locality slopes on N side of North Wash, N of Trachyte Point, N of Utah Highway 95, ca. 0.5 mi E of junction with Utah Highway 276;
     Elev.: 4555 ft. (1388 m.)
Habitat Notes sandy soils; 
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° 1'  21.1" N, 110° 33'  43.67" 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: L4S21. 


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

     Pterostegia drymarioides Fisch. & C.A. Mey.

Common Name(s): woodland pterostegia, woodland threadstem.

Taxonomic Hierarchy: (ITIS TSN=21317, click for more information and references)

        Kingdom: Plantae
            Subkingdom: Tracheobionta
                Division: Magnoliophyta
                    Class: Magnoliopsida
                        Subclass: Caryophyllidae
                            Order: Polygonales
                                Family: Polygonaceae
                                    Genus: Pterostegia
                                        Species: Pterostegia drymarioides


Available images of this specimen (click to view):
specimen image: 12559s1.jpg

Nearby Accessions

Other accessions in the database collected near this one:

Accession Name Dist., dir.
10872 Amsonia jonesii      "Jones' bluestar" same section
14108 Ephedra torreyana      "Torrey's ephedra" 53 ft. W
14112 Ephedra viridis  var. viscida   "Cutler's ephedra" 53 ft. W
12558 Eremocrinum albomarginatum      "Utah solitaire lily" same section
14110 Eriogonum leptocladon      "sand wild buckwheat" 53 ft. W
14111 Quercus x welshii  hybrid [gambelii x havardii]  53 ft. W
14109 Vanclevea stylosa      "resinbush" 53 ft. W


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

Name County Dist., dir. Elevation (ft.) 7.5' Quad Name
Dry Lake Swale (Valley) Garfield County, UT 504 ft. W   Black Table 
Cottonwood Wash (Valley) Garfield County, UT 0.8 mi. NW   Raggy Canyon 
Turkey Knob (Summit) Garfield County, UT 2.1 mi. N 5414  Turkey Knob 
Seep Wash (Valley) Garfield County, UT 2.1 mi. N   Raggy Canyon 
Death Canyon (Valley) Garfield County, UT 2.2 mi. N   Turkey Knob 
Trachyte Point (Ridge) Garfield County, UT 2.8 mi. SE 5322  Black Table 
Hog Spring (Spring) Garfield County, UT 3.9 mi. SE 4554  Black Table 
Black Creek (Stream) Garfield County, UT 4.5 mi. S   Cass Creek Peak 
Speck Creek (Stream) Garfield County, UT 4.5 mi. S   Cass Creek Peak 
Trail Canyon (Valley) Garfield County, UT 4 mi. W   Raggy Canyon 
Butler Canyon (Valley) Garfield County, UT 4.2 mi. SE   Stair Canyon 
Three Forks (Populated Place) Garfield County, UT 4.2 mi. SE 4347  Hite North 
Stair Canyon (Valley) Garfield County, UT 4.2 mi. SE   Stair Canyon 
Trachyte Ranch (Locale) Garfield County, UT 4.8 mi. SW 5069  Black Table 
Copper Creek (Stream) Garfield County, UT 4.5 mi. W   Mount Ellen 
South Fork North Wash (Valley) Garfield County, UT 4.5 mi. W   Raggy Canyon 
Straight Creek (Stream) Garfield County, UT 5.2 mi. SW   Mount Pennell 
Slate Creek (Stream) Garfield County, UT 5.2 mi. SW   Mount Ellen 
Little Egypt (Flat) Garfield County, UT 5.3 mi. NW 4974  Raggy Canyon 
Farmers Knob (Summit) Garfield County, UT 5.4 mi. SW 5446  Cass Creek Peak 


Taxon Links for species Pterostegia drymarioides  Fisch. & C.A. Mey.

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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