Utah Valley University Herbarium


Accession # 13160 
Family - UVUAPG III FamilyCronquist FamilyA Utah Flora
Species Astragalus amphioxys A. Gray
Common name   Crescent milkvetch
R. Van Buren   424  
Coll. Date 25 April 2004 
United States
Washington County
Locality N of "The Mound" site, foothills SE of the Virgin River & SW of Atkinville Wash, ca. 0.75 air miles W of the I-15 Inspection Station;
     Elev.: 2600 ft. (793 m.)
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° 0'  55" N, 113° 37'  17" W
Township Range T43S R16W S27  
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 of taxa associated with Astragalus holmgreniorum, R. Van Buren, K.T. Harper 
Specimen Notes Astragalus holmgreniorum study site. 


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

     Astragalus amphioxys Gray

Common Name(s): Crescent milkvetch.

Taxonomic Hierarchy: (ITIS TSN=25414, click for more information and references)

        Kingdom: Plantae
            Subkingdom: Tracheobionta
                Division: Magnoliophyta
                    Class: Magnoliopsida
                        Subclass: Rosidae
                            Order: Fabales
                                Family: Fabaceae
                                    Genus: Astragalus
                                        Species: Astragalus amphioxys


Available images of this specimen (click to view):
specimen image: 13160s1.jpg

Images of other samples of the same species:
specimen image: 04053s2.jpg 
specimen image: 04281s1.jpg 
specimen image: 05839s1.jpg 
specimen image: 05971s1.jpg 
specimen image: 06553s1.jpg 
specimen image: 06983s1.jpg 
specimen image: 08269s1.jpg 
specimen image: 08515s1.jpg 
specimen image: 09470s2.jpg 
specimen image: 09908s1.jpg 
specimen image: 10174s1.jpg 
specimen image: 10179s1.jpg 
specimen image: 10470s2.jpg 
specimen image: 10485s2.jpg 
specimen image: 10487s1.jpg 
specimen image: 10506s2.jpg 
specimen image: 10562s1.jpg 
specimen image: 10578s2.jpg 
specimen image: 10929s1.jpg 
specimen image: 11464s1.jpg 
specimen image: 11464f1.jpg 
specimen image: 11472s1.jpg 
specimen image: 11472f1.jpg 
specimen image: 11539s1.jpg 
specimen image: 11539d1.jpg 
specimen image: 11987s1.jpg 
specimen image: 12585s2.jpg 
specimen image: 12585c1.jpg 
specimen image: 12585d1.jpg 
specimen image: 12617s2.jpg 
specimen image: 12617c1.jpg 
specimen image: 12617d1.jpg 
specimen image: 13188s1.jpg 
specimen image: 16862d1.jpg 
specimen image: 16862s1.jpg 
specimen image: 16862a1.jpg 
specimen image: 16862b1.jpg 
specimen image: 16862c1.jpg 

Nearby Accessions

Other accessions in the database collected near this one:

Accession Name Dist., dir.
08752 Abronia fragrans      "snowball sand verbena" 12.3 mi. N
13163 Allionia incarnata      "trailing windmills" same section
08467 Amsinckia tessellata      "bristly fiddleneck" 12.3 mi. N
03766 Argemone munita      "flatbud pricklypoppy" 13.2 mi. N
13164 Aristida purpurea      "purple threeawn" same section
05884 Astragalus eremiticus      "hermit milkvetch" 2.6 mi. NE
13165 Astragalus holmgreniorum      "Paradox milkvetch" same section
09353 Astragalus nuttallianus  var. imperfectus   "Mojave small-flowered milkvetch" same section
15418 Atriplex canescens  var. canescens   "four-winged saltbush" 2.5 mi. N
14599 Atriplex torreyi      "Torrey's saltbush" 1.9 mi. NW
08222 Bromus diandrus      "great brome" 2412 ft. NW
08447 Bromus rubens      "red brome" 15.4 mi. N
13167 Bromus rubens      "red brome" same section
13166 Bromus tectorum      "cheatgrass" same section
13168 Calochortus flexuosus      "winding mariposa lily" same section
04988 Camissonia boothii  var. condensata   "clustered desert primrose" 2220 ft. N
09356 Camissonia boothii  var. condensata   "clustered desert primrose" same section
03842 Camissonia multijuga      "frost-stem suncup" 2.9 mi. N
08956 Camissonia multijuga      "frost-stem suncup" 2.9 mi. N
03843 Camissonia parryi      "Parry's suncup" 2.9 mi. N
15303 Camissonia parryi      "Parry's suncup" 2.5 mi. N
16032 Camissonia parryi      "Parry's suncup" 2.9 mi. N
08449 Castilleja chromosa      "common paintbrush" 15.4 mi. N
08446 Centrostegia thurberi      "Thurber's spineflower" 15.4 mi. N
08457 Chamaesyce fendleri      "Fendler's sandmat" 15.4 mi. N
03852 Chamaesyce fendleri      "Fendler's sandmat" 2.9 mi. N
08458 Chenopodium murale      "nettleleaf goosefoot" 12.3 mi. N
15417 Chilopsis linearis      "desert willow" 2.6 mi. N
15244 Chilopsis linearis      "desert willow" 2.4 mi. N
05605 Chloris virgata      "feather windmill grass" 3.7 mi. N
05598 Chrysothamnus nauseosus  var. consimilis   "rubber rabbitbrush" 3.7 mi. N
13169 Coleogyne ramosissima      "blackbrush" same section
08460 Cryptantha barbigera      "bearded forget-me-not" 12.3 mi. N
08455 Cryptantha confertiflora      "basin yellow cat's eye" 15.4 mi. N
08754 Cryptantha decipiens      "gravel forget-me-not" 12.3 mi. N
08459 Cryptantha micrantha      "purple-rooted forget-me-not" 12.3 mi. N
09357 Cryptantha nevadensis      "Nevada forget-me-not" same section
08462 Cryptantha pterocarya  var. cycloptera   "winged-nut forget-me-not" 12.3 mi. N
08464 Cryptantha pterocarya  var. pterocarya   "winged-nut forget-me-not" 12.3 mi. N
05604 Cupressus arizonica      "Arizona cypress" 2.7 mi. N
02412 Cymopterus purpureus  var. purpureus   "purple spring parsley" 7.3 mi. N
04986 Cymopterus purpureus  var. purpureus   "purple spring parsley" 2220 ft. N
09355 Dasyochloa pulchella      "desert fluffgrass" same section
08444 Descurainia sophia      "flix weed" 15.4 mi. N
13170 Dichelostemma pulchellum      "bluedicks" same section
08463 Dimorphocarpa wislizeni      "Wislizen's spectacle pod" 12.3 mi. N
08751 Eriastrum eremicum      "desert woollystar" 12.3 mi. N
08445 Eriastrum sparsiflorum      "Great Basin woollystar" 15.4 mi. N
15286 Eriogonum corymbosum      "crisp-leaf wild buckwheat" 2.8 mi. NE
03882 Eriogonum corymbosum  var. glutinosum   "sticky wild buckwheat" 2.9 mi. N
03877 Eriogonum deflexum      "flat-topped wild buckwheat" 2.9 mi. N
03876 Eriogonum deflexum      "flat-topped wild buckwheat" 2.9 mi. N
16033 Eriogonum deflexum      "flat-topped wild buckwheat" 2.9 mi. N
03853 Eriogonum inflatum      "desert trumpet" 2.9 mi. N
14255 Eriogonum microthecum  var. simpsonii   "Simpson's wild buckwheat" 31.6 mi. N
13171 Eriogonum thomasii      "Thomas' wild buckwheat" same section
05880 Eriogonum thomasii      "Thomas' wild buckwheat" 2.9 mi. N
05881 Eriophyllum lanosum      "white easterbonnets" 2.9 mi. N
08468 Eriophyllum wallacei      "Wallace's easter bonnets" 12.3 mi. N
13172 Eschscholzia minutiflora      "pygmy poppy" same section
08454 Gilia brecciarum  subsp. brecciarum   "Nevada gilia" 15.4 mi. N
08125 Gilia inconspicua      "Nevada gilia" 31.8 mi. N
04972 Guillenia lasiophylla      "California mustard" 2220 ft. N
05907 Ipomopsis polycladon      "spreading gilia" 2.9 mi. N
08955 Langloisia setosissima  subsp. setosissima   "Great Basin langloisia" 2.9 mi. N
08442 Lepidium fremontii      "desert peppercress" 12.3 mi. N
12029 Linanthus demissus      "desertsnow" 2.9 mi. N
08451 Lomatium parryi      "Parry's desert parsley" 15.4 mi. N
13112 Lomatium scabrum  var. tripinnatum   "rough desert parsley" 9 mi. N
13173 Lotus denticulatus      "riverbar bird's-foot trefoil" same section
13174 Lupinus brevicaulis      "shortstem lupine" same section
08461 Lupinus concinnus  subsp. orcuttii   "Orcutt's lupine" 12.3 mi. N
13175 Lycium pallidum      "pale desert-thorn" same section
08466 Malacothrix glabrata      "smooth desert-dandelion" 12.3 mi. N
06531 Malacothrix glabrata      "smooth desert-dandelion" 1.2 mi. E
08453 Mentzelia albicaulis      "whitestem blazingstar" 15.4 mi. N
02428 Nemacladus glanduliferus      "glandular threadplant" 7.3 mi. N
08753 Pectocarya heterocarpa      "chuckwalla combseed" 12.3 mi. N
14606 Penstemon linarioides  var. sileri   "Siler's toadflax beardtongue" 35.6 mi. N
14253 Peraphyllum ramosissimum      "wild crab apple" 31.7 mi. N
03020 Peraphyllum ramosissimum      "wild crab apple" 31.8 mi. N
15287 Petalonyx parryi      "Parry's sandpaper plant" 2.9 mi. NE
14254 Petradoria pumila      "common rock goldenrod" 31.6 mi. N
04985 Phacelia fremontii      "Fremont's scorpionweed" 2220 ft. N
06540 Phacelia fremontii      "Fremont's scorpionweed" 1.2 mi. E
08750 Phacelia ivesiana  var. ivesiana   "Ives' scorpionweed" 12.3 mi. N
08456 Phacelia ivesiana  var. ivesiana   "Ives' scorpionweed" 15.4 mi. N
13176 Phacelia vallis-mortae      "Death Valley scorpionweed" same section
14604 Phlox austromontana      "southern phlox" 31.2 mi. N
14605 Phlox griseola      "grayleaf phlox" 35.6 mi. N
09354 Plantago insularis      "desert plantain" same section
13177 Plantago patagonica      "Patagonia plantain" same section
04971 Poa bigelovii      "Bigelow's bluegrass" 2220 ft. N
02419 Prenanthella exigua      "thorny skeleton plant" 7.3 mi. N
03164 Psora crenata      "crenate fishscale lichen" 4.6 mi. S
14252 Purshia mexicana      "Mexico cliffrose" 30.3 mi. N
08448 Rhamnus betulifolia      "birchleaf buckthorn" 15.4 mi. N
03854 Salsola paulsenii      "barbwire Russian thistle" 2.9 mi. N
08465 Schismus arabicus      "Arabian grass" 12.3 mi. N
08452 Senecio multilobatus      "lobeleaf groundsel" 15.4 mi. N
08443 Sisymbrium altissimum      "tall tumblemustard" 15.4 mi. N
05587 Solidago wrightii      "Wright's goldenrod" 3.7 mi. N
13178 Sporobolus flexuosus      "mesa dropseed" same section
08005 Tetradymia axillaris      "longspine horsebrush" 2.4 mi. N
14251 Tetradymia canescens      "spineless horsebrush" 30.3 mi. N
08999 Tidestromia oblongifolia      "Arizona honeysweet" 2.9 mi. N
04332 Tidestromia oblongifolia      "Arizona honeysweet" 2.9 mi. N
04323 Tidestromia oblongifolia      "Arizona honeysweet" 2.9 mi. N
03880 Tidestromia oblongifolia      "Arizona honeysweet" 2.9 mi. N
09349 Tricardia watsonii      "threehearts" 1.1 mi. S
08450 Vulpia microstachys  var. pauciflora   "Pacific small fescue" 15.4 mi. N
06535 Xylorhiza tortifolia  var. tortifolia   "Mojave woody aster" 1.2 mi. E


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

Name County Dist., dir. Elevation (ft.) 7.5' Quad Name
Atkinville (Populated Place) Washington County, UT 1.1 mi. N 2503  White Hills 
Lizard Wash (Valley) Washington County, UT 0.9 mi. E 2595  Saint George 
Lizard Wash (Valley) Mohave County, AZ 0.9 mi. E   Lizard Point 
Atkinville Wash (Valley) Washington County, UT 1.2 mi. N   Saint George 
Curly Hollow Wash (Valley) Washington County, UT 1.2 mi. N   Jarvis Peak 
Big Valley (Basin) Washington County, UT 1.1 mi. SE 2635  Saint George 
Big Valley (Valley) Mohave County, AZ 1.1 mi. SE   Purgatory Canyon 
Little Round Valley (Basin) Washington County, UT 1.3 mi. W 2464  White Hills 
Mokaac Wash (Valley) Washington County, UT 1.3 mi. E 2602  Saint George 
Mokaac Wash (Arroyo) Mohave County, AZ 1.9 mi. SE   Lizard Point 
Price City (historical) (Locale) Washington County, UT 2.2 mi. NE 2500  Saint George 
Big Round Valley (Basin) Washington County, UT 1.9 mi. W 2444  White Hills 
Bloomington (Populated Place) Washington County, UT 2.3 mi. N 2520  Saint George 
The Church of Jesus Christ of Latter Day Saints (Church) Washington County, UT 2.4 mi. N 2523  Saint George 
Val Wash (Valley) Washington County, UT 2.1 mi. W   White Hills 
Black Rock Interchange (Crossing) Mohave County, AZ 2.6 mi. SW 2799  Purgatory Canyon 
Bloomington School (School) Washington County, UT 3 mi. NE 2543  Saint George 
Price Bench (Bench) Washington County, UT 3 mi. NE 2539  Saint George 
Bloomington Hill (Summit) Washington County, UT 3.3 mi. N 2700  Saint George 
West Mountain Valley Wash (Valley) Washington County, UT 2.6 mi. W   Jarvis Peak 


Taxon Links for species Astragalus amphioxys  A. Gray

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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