Utah Valley University Herbarium


Accession # 16027 
Family - UVUAPG III FamilyCronquist FamilyA Utah Flora
Species Astragalus desperatus M.E. Jones
Infraspecific    var. desperatus 
Common name   rimrock milkvetch
D.M. Barnes   5476  
Coll. Date 03 April 2007 
United States
San Juan County
Locality Lower Butler Wash Road, about 1 mile S of the Bluff Airport, cliff overlooking the San Juan River;
     Elev.: 4402 ft. (1342 m.)
Habitat Notes desert shrub community; rocky-pebbly soil. 
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° 14'  46" N, 109° 38'  33" 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):

     Astragalus desperatus var. desperatus M.E. Jones

Common Name(s): rimrock milkvetch.

Taxonomic Hierarchy: (ITIS TSN=192450, click for more information and references)

        Kingdom: Plantae
            Subkingdom: Tracheobionta
                Division: Magnoliophyta
                    Class: Magnoliopsida
                        Subclass: Rosidae
                            Order: Fabales
                                Family: Fabaceae
                                    Genus: Astragalus
                                        Species: Astragalus desperatus
                                            Variety: Astragalus desperatus var. desperatus


Images of other samples of the same species:
specimen image: 00981s1.jpg 
specimen image: 04268s1.jpg 
specimen image: 05911s1.jpg 
specimen image: 06982s1.jpg 
specimen image: 08331s1.jpg 
specimen image: 10412s1.jpg 
specimen image: 10951b1.jpg 
specimen image: 10951c1.jpg 
specimen image: 10951s1.jpg 
specimen image: 10951f1.jpg 

Nearby Accessions

Other accessions in the database collected near this one:

Accession Name Dist., dir.
12580 Castilleja scabrida  var. scabrida   "rough paintbrush" same section
12577 Cymopterus acaulis  var. fendleri   "Fendler's spring parsley" same section
18015 Ericameria nauseosa  var. nitida   "shiny rubber rabbitbrush" 1.2 mi. N
18016 Eriogonum leptocladon  var. ramosissimum   "San Juan wild buckwheat" 1.2 mi. N
12579 Gilia inconspicua  var. sinuata  same section
12578 Lappula occidentalis      "western stickseed" same section


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

Name County Dist., dir. Elevation (ft.) 7.5' Quad Name
Bluff Airport (Airport) San Juan County, UT 2894 ft. NE 4459  Bluff SW 
Butler Wash (Stream) San Juan County, UT 1.4 mi. SW   Hotel Rock 
Hobbs Wash Historical Marker (Park) San Juan County, UT 1.9 mi. NE 4429  Bluff 
Gothic Creek (Stream) San Juan County, UT 2 mi. SW   Toh Atin Mesa West 
Buck Creek (Stream) San Juan County, UT 2 mi. NE   Bluff 
Navajo Spring (Spring) San Juan County, UT 2 mi. NW 4452  Bluff SW 
White Rock Point (Cliff) San Juan County, UT 2.1 mi. E 4689  White Rock Point 
Snake Canyon (Valley) San Juan County, UT 2.7 mi. NW   Bluff SW 
San Juan Hill (Summit) San Juan County, UT 3.2 mi. W 4734  San Juan Hill 
Tselakai Dezza (Populated Place) San Juan County, UT 3.6 mi. SE 4584  White Rock Point 
Comb Wash (Valley) San Juan County, UT 4 mi. SW   Hotel Rock 
Window Rock Canyon (Valley) San Juan County, UT 4.4 mi. SE   White Rock Point 
Window Rock Spring (Spring) San Juan County, UT 4.6 mi. SE 4721  White Rock Point 
Ute Canyon (Valley) San Juan County, UT 5.2 mi. SE   White Rock Point 
Chinle Creek (Stream) San Juan County, UT 5.2 mi. SW   Mexican Water 
Ute Spring (Spring) San Juan County, UT 5.4 mi. SE 4741  White Rock Point 
Tohonadla Oil Field (Oilfield) San Juan County, UT 6.2 mi. SE 4633  White Rock Point 
Mule Ear (Pillar) San Juan County, UT 6.4 mi. SW 4912  San Juan Hill 


Taxon Links for species Astragalus desperatus  M.E. Jones

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.

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