Astragalus oophorus var. lonchocalyx - Barneby
Pink Egg Milkvetch
Taxonomic Status: Accepted
Related ITIS Name(s): Astragalus oophorus var. lonchocalyx Barneby (TSN 192682)
Unique Identifier: ELEMENT_GLOBAL.2.131800
Element Code: PDFAB0F6C3
Informal Taxonomy: Plants, Vascular - Flowering Plants - Pea Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Fabales Fabaceae Astragalus
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Concept Reference
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Concept Reference: Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Astragalus oophorus var. lonchocalyx
Conservation Status
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NatureServe Status

Global Status: G4T2
Global Status Last Reviewed: 12May2014
Global Status Last Changed: 03Aug1988
Ranking Methodology Used: Ranked by calculator
Rounded Global Status: T2 - Imperiled
Reasons: Endemic to the Great Basin in southwestern Utah and southeastern Nevada. Approximately 17 occurrences are known. Heavy grazing is a threat.
Nation: United States
National Status: N2

U.S. & Canada State/Province Status
United States Nevada (S2), Utah (S1S2)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Known only from Beaver, Iron, and Washington Counties in Utah, and Lincoln County, Nevada.

Area of Occupancy: 6-25 4-km2 grid cells
Area of Occupancy Comments: Approximately 17 4-sq km grid cells (EO data in the NatureServe central database as of February 2014).

Number of Occurrences: 6 - 20
Number of Occurrences Comments: Approximately 17 occurrences (EO data in the NatureServe central database as of February 2014).

Overall Threat Impact: High - medium
Overall Threat Impact Comments: Threatened by heavy grazing. Electrical transmission line construction and maintenance may also be a threat (U.S. Department of the Interior 1992).

Other NatureServe Conservation Status Information

Distribution
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Global Range: Known only from Beaver, Iron, and Washington Counties in Utah, and Lincoln County, Nevada.

U.S. States and Canadian Provinces
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States NV, UT

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
NV Lincoln (32017)
UT Beaver (49001)*, Iron (49021), Washington (49053)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
15 Meadow Valley Wash (15010013)+
16 Hamlin-Snake Valleys (16020301)+*, Pine Valley (16020302)+*, Escalante Desert (16030006)+, Spring-Steptoe Valleys (16060008)+*, Dry Lake Valley (16060009)+*
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Duration: PERENNIAL
Terrestrial Habitat(s): Desert, Forest/Woodland, Shrubland/chaparral
Habitat Comments: Pinyon-juniper, sagebrush, and mixed desert shrub communities at 1,770 to 2,300 m (Welsh et al. 2008). Dry gravelly hillsides and stony flats, associated with sagebrush, on limestone (Barneby 1964).
Economic Attributes
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Economically Important Genus: Y
Management Summary
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Stewardship Overview: Revisit sites, document abundance, and assess threats (especially grazing). Work with land owners to protect and maintain habitat.
Population/Occurrence Delineation Not yet assessed
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Population/Occurrence Viability
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U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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NatureServe Conservation Status Factors Edition Date: 12May2014
NatureServe Conservation Status Factors Author: D. Gries, rev. A. Tomaino (2014)
Management Information Edition Date: 12May2014
Management Information Edition Author: Tomaino, A.

Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

References
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  • Barneby, R.C. 1964. Atlas of North American Astragalus. 2 Vols. New York Botanical Garden, Bronx, New York. 1188 pp.

  • Kartesz, J.T. 1988. A flora of Nevada. Ph.D. dissertation. Univ. of Nevada, Reno. 3 volumes. 1729 pp.

  • Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

  • Morefield, J.D., editor. 2001. Nevada rare plant atlas [with rare plant fact sheets]. Available as a pdf file at: http://heritage.nv.gov/atlas/atlas.html. Compiled by the Nevada Natural Heritage Program, Carson City, for the U.S. Fish and Wildlife Service, Reno, Nevada.

  • U.S. Department of the Interior. 1992. Southwest Intertie Project: draft environmental impact statement, draft plan amendment, Volume 1. Bureau of Land Management. Burley District Office, Idaho.

  • Utah Native Plant Society. 2003-2014. Utah rare plant guide. A.J. Frates editor/coordinator. Salt Lake City, UT. Utah Native Plant Society. Online. Available: http://www.utahrareplants.org (accessed 2014).

  • Welsh, S.L., N.D. Atwood, S. Goodrich and L.C. Higgins. (Eds.) 2008. A Utah Flora. 4th edition, revised. Brigham Young University, Provo, Utah, U.S.A. 1019 pp.

  • Welsh, S.L., N.D. Atwood, S. Goodrich, and L.C. Higgins (eds.) 1993. A Utah flora. 2nd edition. Brigham Young Univ., Provo, Utah. 986 pp.

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