Utah Valley University Herbarium


Accession # 08245 
Family - UVUAPG III FamilyCronquist FamilyA Utah Flora
Species Psilostrophe cooperi (A. Gray) Greene
Common name   whitestem paperflower
R.L. Johnson   s.n.  
Coll. Date 14 May 1992 
United States
Washington County
Locality Castle Rock.
Habitat Notes rocky outcrop boardering 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 37° 3'  45" N, 113° 53'  28" W
Township Range T43S, R18 W, Sec. 8  
Datum Not recorded
Uncertainty Not calculated
TRS Notes Latitude and longitude were derived from township and range information and may be
inaccurate by as much as 0.7 miles (or 4.2 miles if the section is not given).


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

     Psilostrophe cooperi (Gray) Greene

     Riddellia cooperi Gray

Common Name(s): paperflower (whitestem), whitestem paperflower.

Taxonomic Hierarchy: (ITIS TSN=38313, click for more information and references)

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


Available images of this specimen (click to view):
specimen image: 08245s2.jpg

Images of other samples of the same species:
specimen image: 03657s2.jpg 
specimen image: 08243s2.jpg 
specimen image: 08244s2.jpg 
specimen image: 08246s2.jpg 
specimen image: 10228s2.jpg 
specimen image: 16840e1.jpg 
specimen image: 16840d1.jpg 
specimen image: 16840c1.jpg 
specimen image: 16840b1.jpg 
specimen image: 16840a1.jpg 
specimen image: 16840s1.jpg 

Nearby Accessions

Other accessions in the database collected near this one:

Accession Name Dist., dir.
08387 Agave utahensis      "Utah dwarf century plant" 1554 ft. NW
05310 Aloysia wrightii      "Wright's beebrush" 1 mi. N
14286 Ambrosia eriocentra      "woolly bur-sage" 1475 ft. NW
08958 Ambrosia eriocentra      "woolly bur-sage" 1554 ft. NW
14459 Ambrosia salsola      "burrobush" 1102 ft. NE
15274 Arctostaphylos pringlei      "Pringle manzanita" 1.2 mi. NW
05278 Baccharis sergiloides      "desert seep-willow" 1 mi. N
14283 Brickellia microphylla  var. scabra   "rough brickellbush" 1475 ft. NW
14284 Buddleja utahensis      "Utah butterflybush" 1475 ft. NW
05311 Buddleja utahensis      "Utah butterflybush" 1 mi. N
14794 Buddleja utahensis      "Utah butterflybush" 1253 ft. NW
05700 Carya illinoinensis      "pecan" 1660 ft. NW
15711 Cryptantha pterocarya  var. cycloptera  2.4 mi. SE
08389 Cupressus arizonica      "Arizona cypress" 1554 ft. NW
05275 Cupressus arizonica      "Arizona cypress" 1 mi. N
04190 Cupressus arizonica      "Arizona cypress" 1 mi. N
14795 Encelia virginensis      "Virgin River brittlebush" 1253 ft. NW
17932 Ephedra fasciculata      "Mojave ephedra" 1959 ft. NW
14798 Ephedra viridis  var. viridis  1253 ft. NW
14808 Ericameria laricifolia      "turpentine bush" same section
14282 Ericameria paniculata      "Mojave rabbitbrush" 1475 ft. NW
14814 Eriogonum heermannii  var. sulcatum   "Heermann's wild buckwheat" 1197 ft. NW
14797 Lepidium fremontii      "desert peppercress" 1253 ft. NW
15712 Lepidium lasiocarpum  var. lasiocarpum  2.4 mi. SE
08385 Lesquerella rectipes      "straight bladderpod" 1554 ft. NW
08959 Melia azedarach      "Chinaberrytree" 1554 ft. NW
08305 Neolloydia johnsonii     1554 ft. NW
16856 Oenothera primiveris      "desert evening primrose" 1698 ft. NE
14796 Parthenium incanum      "mariola" 1253 ft. NW
08960 Parthenium incanum      "mariola" 1554 ft. NW
05279 Parthenium incanum      "mariola" 1 mi. N
14813 Parthenium incanum      "mariola" 1197 ft. NW
14285 Perityle tenella      "Springdale rockdaisy" 1475 ft. NW
05277 Perityle tenella      "Springdale rockdaisy" 1 mi. N
02667 Phacelia fremontii      "Fremont's scorpionweed" 1.4 mi. SE
02666 Physaria tenella      "Moapa bladderpod" 1.4 mi. SE
05268 Prunus fasciculata      "desert almond" 1 mi. N
14281 Psilostrophe cooperi      "whitestem paperflower" same section
05309 Psorothamnus polydenius  var. polydenius   "Nevada dalea" 1 mi. N
15634 Rafinesquia neomexicana     2.4 mi. SE
08386 Salazaria mexicana      "Mexican bladdersage" 1554 ft. NW
14457 Salazaria mexicana      "Mexican bladdersage" 1102 ft. NE
08957 Senecio douglasii  var. monoensis   "Mono ragwort" 1554 ft. NW
14793 Senecio flaccidus  var. monoensis   "Mono ragwort" 1253 ft. NW
05276 Stephanomeria tenuifolia  var. tenuifolia   "narrow-leaf wirelettuce" 1 mi. N
02668 Thamnosma montana      "turpentinebroom" 1.4 mi. SE
14458 Thamnosma montana      "turpentinebroom" 1102 ft. NE
16857 Thamnosma montana      "turpentinebroom" 1768 ft. NE
17931 Tiquilia canescens      "woody crinklemat" 1959 ft. NW
11453 Tridens muticus      "slim tridens" 1390 ft. NW
05469 Yucca schidigera      "Mojave yucca" 1 mi. N
08388 Yucca schidigera      "Mojave yucca" 1554 ft. NW


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

Name County Dist., dir. Elevation (ft.) 7.5' Quad Name
Castle Cliff (Cliff) Washington County, UT 2024 ft. NE 3862  Castle Cliff 
Castle Cliff (Cliff) Washington County, UT 0.6 mi. SE 4055  Castle Cliff 
Summit Spring Wash (Valley) Washington County, UT 1.5 mi. NE   Castle Cliff 
Joshua Tree Natural Area (Reserve) Washington County, UT 2.1 mi. S 3140  Castle Cliff 
Summit Spring (Spring) Washington County, UT 2.4 mi. N 4600  Jarvis Peak 
Welcome Spring (Spring) Washington County, UT 2.5 mi. N 4544  Castle Cliff 
Bulldog Knolls (Range) Washington County, UT 2.8 mi. SE 3373  Jarvis Peak 
Bulldog Canyon (Valley) Washington County, UT 3 mi. SE   Jarvis Peak 
Tabeau Peak (Summit) Washington County, UT 3.7 mi. S 4341  Jarvis Peak 
Middle Spring (Spring) Washington County, UT 4.3 mi. N 4728  Castle Cliff 
Black Warrior Mine (Mine) Washington County, UT 3.9 mi. E 6257  Jarvis Peak 
Westside Mine (Mine) Washington County, UT 4.1 mi. E 5794  Jarvis Peak 
Grapevine Spring (Spring) Washington County, UT 5.1 mi. N 5735  West Mountain Peak 
Utah Hill Summit (Locale) Washington County, UT 4.5 mi. NE 4744  Jarvis Peak 
Sam Spring (Spring) Washington County, UT 5.1 mi. N 4685  West Mountain Peak 
Reber Spring (Spring) Washington County, UT 4.9 mi. N 4242  Castle Cliff 
Crazy Spring (Spring) Washington County, UT 5.6 mi. N 4580  West Mountain Peak 


Taxon Links for species Psilostrophe cooperi  (A. Gray) Greene

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:

Zooming out might reveal more collections in other states.

Note: Printing this page will show all information sequentially.   edit