Utah Valley University Herbarium


Accession # 15025 
Family - UVUAPG III FamilyCronquist FamilyA Utah Flora
Species Asclepias speciosa Torr.
Common name   showy milkweed
Kenna Mikesell   48  
Coll. Date 02 September 2007 
United States
Utah County
Locality Provo River Trail, 176 yards NE of entrance to Utah Lake State Park;
     Elev.: 4492 ft. (1370 m.)
Habitat Notes riparian 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 40° 14'  15.64" N, 110° 43'  53.96" 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):

     Asclepias speciosa Torr.

     Asclepias giffordii Eastw.

Common Name(s): showy milkweed.

Taxonomic Hierarchy: (ITIS TSN=30304, click for more information and references)

        Kingdom: Plantae
            Subkingdom: Tracheobionta
                Division: Magnoliophyta
                    Class: Magnoliopsida
                        Subclass: Asteridae
                            Order: Gentianales
                                Family: Asclepiadaceae
                                    Genus: Asclepias
                                        Species: Asclepias speciosa


Images of other samples of the same species:
specimen image: 00649s3.jpg 
specimen image: 02625s2.jpg 
specimen image: 02778s2.jpg 
specimen image: 02802s4.jpg 
specimen image: 03823s2.jpg 
specimen image: 05109s3.jpg 
specimen image: 08146s2.jpg 
specimen image: 11840c1.jpg 
specimen image: 11840s3.jpg 
specimen image: 11840d1.jpg 

Nearby Accessions

Other accessions in the database collected near this one:

Accession Name Dist., dir.
15021 Apocynum cannabinum      "Indian-hemp" 489 ft. W
15018 Clematis orientalis      "Oriental virgins-bower" 2298 ft. W
15024 Cornus sericea      "redosier dogwood" 234 ft. NW
15019 Crataegus monogyna      "oneseed hawthorn" 1140 ft. NW
15020 Fraxinus velutina      "velvet ash" 501 ft. W
15027 Morus alba      "white mulberry" 365 ft. W
15022 Parthenocissus quinquefolia      "Virginia creeper" 489 ft. W
15028 Populus alba      "white poplar" 365 ft. W
15031 Populus nigra      "Lombardy poplar" 140 ft. N
15017 Rubus leucodermis      "western raspberry" 2843 ft. W
15016 Salix x fragilis  hybrid [alba x euxina]   "crack willow" 188 ft. SE
15023 Solanum dulcamara      "climbing nightshade" 245 ft. W
15026 Tamarix       "tamarisk" 39 ft. N
15030 Ulmus       "elm" 365 ft. W


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

Name County Dist., dir. Elevation (ft.) 7.5' Quad Name
Cockey Hollow (Valley) Duchesne County, UT 1.8 mi. NE   Tabby Mountain 
Coyote Draw (Valley) Duchesne County, UT 2.3 mi. NW   Tabby Mountain 
Rough Hollow (Valley) Duchesne County, UT 2.8 mi. NW   Tabby Mountain 
Red Creek Wildlife Management Area (Park) Duchesne County, UT 3.7 mi. N 7244  Tabiona 
Sand Wash (Valley) Duchesne County, UT 3.9 mi. SW   Strawberry Pinnacles 
Santaquin Draw (Valley) Duchesne County, UT 3.5 mi. NE   Tabby Mountain 
Grey Wolf Mountain (Summit) Duchesne County, UT 3.6 mi. NW 7451  Tabby Mountain 
Trail Hollow (Valley) Duchesne County, UT 4.2 mi. NE   Tabby Mountain 
Currant Creek (Stream) Duchesne County, UT 4.4 mi. SW   Jimmies Point 
Mill Hollow (Valley) Duchesne County, UT 4.2 mi. NE   Tabby Mountain 
Cedar Mountain (Summit) Duchesne County, UT 5.4 mi. S 7661  Strawberry Pinnacles 
Right Fork Mill Hollow (Valley) Duchesne County, UT 5.8 mi. N   Tabby Mountain 


Taxon Links for species Asclepias speciosa  Torr.

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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