Ivesia kingii - S. Wats.
King's Ivesia
Other English Common Names: King's Mousetail
Other Common Names: King's mousetail
Taxonomic Status: Accepted
Related ITIS Name(s): Ivesia kingii S. Wats. (TSN 25223)
Unique Identifier: ELEMENT_GLOBAL.2.152748
Element Code: PDROS0X090
Informal Taxonomy: Plants, Vascular - Flowering Plants - Rose Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Rosales Rosaceae Ivesia
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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: Ivesia kingii
Taxonomic Comments: Kartesz (1994 checklist or 1999 floristic synthesis) does not recognize varieties in this species; however, USFWS recognizes var. eremica as distinct from the typical var. kingii. As Kartesz notes (in letter to Larry Morse, 25Nov99), he reviewed all of the available Nevada collections and concluded that "this [var. eremica] is nothing more than an extremely variable expression of Ivesia kingii"; he also notes that various individuals, including Barbara Ertter, had listed characters considered useful in separating the two taxa, she (Ertter) has more recently indicated (in a personal communication with Kartesz) that researchers in the Netherlands "also maintain it as nothing more than a taxonomic synonym of Ivesia kingii."
Conservation Status
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NatureServe Status

Global Status: G4
Global Status Last Reviewed: 09May2012
Global Status Last Changed: 09May2012
Rounded Global Status: G4 - Apparently Secure
Reasons: Ivesia kingii is known from Inyo and Mono Counties, California, and from Nevada and Utah. The typical variety occurs throughout this range, while I. kingii var. eremica is an endemic of Ash Meadows in southern Nye County, Nevada. There are nine extant occurrences recorded for Ivesia kingii var. eremica in Nevada. I. kingii var. kingii is known in California from fewer than ten occurrences, but is apparently more common in Nevada and Utah. Ivesia kingii var. eremica is highly endangered by development, agriculture, and damage by wild horses, and was formerly threatened by the proposed MX missile project (ca. 1980). I. kingii var. kingii is threatened by vehicle activity and possibly grazing.
Nation: United States
National Status: N3

U.S. & Canada State/Province Status
Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
United States California (SNR), Nevada (S3), Utah (S1)

Other Statuses

Implied Status under the U.S. Endangered Species Act (USESA): PS
Comments on USESA: Ivesia kingii has an interpreted status of PS (partial status) because I. kingii var. eremica is listed Threatened.

NatureServe Global Conservation Status Factors

Range Extent Comments: Ivesia kingii var. eremica is an endemic of Ash Meadows in southern Nye County, Nevada. I. kingii var. kingii is known from Inyo and Mono Counties, California, and from Nevada and Utah (Skinner 1997).

Number of Occurrences:  
Number of Occurrences Comments: Ivesia kingii var. kingii is known from California, Nevada, and Utah, with var. eremica endemic to the Ash Meadows area of Nevada. There are nine extant occurrence records for Ivesia kingii var. eremica in Nevada (Nevada Natural Heritage Program 1999). I. kingii var. kingii is known in California from fewer than ten occurrences (Skinner 1997).

Overall Threat Impact Comments: Ivesia kingii var. eremica is highly endangered by development; agriculture, damage by wild horses, and (formerly, ca. 1980) MX missile construction also pose threats. I. kingii var. kingii is threatened by vehicles and possibly grazing (Skinner 1997).

Other NatureServe Conservation Status Information

Distribution
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Global Range: Ivesia kingii var. eremica is an endemic of Ash Meadows in southern Nye County, Nevada. I. kingii var. kingii is known from Inyo and Mono Counties, California, and from Nevada and Utah (Skinner 1997).

U.S. States and Canadian Provinces

Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
Color legend for Distribution Map

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

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
NV Nye (32023)
UT Beaver (49001), Garfield (49017)*, Piute (49031), Sanpete (49039)*
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
16 Upper Sevier (16030001)+, East Fork Sevier (16030002)+*, Middle Sevier (16030003)+*, San Pitch (16030004)+*, Escalante Desert (16030006)+, Beaver Bottoms-Upper Beaver (16030007)+
18 Upper Amargosa (18090202)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History Not yet assessed
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Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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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: 28May1999
NatureServe Conservation Status Factors Author: Gries, D. (1999), rev. L. Morse (2000)

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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  • Kartesz, J. T. 1999. Comments regarding taxa 1-187 [of list supplied by TNC]. Unpublished, Biota of North America Program, North Carolina Botanical Garden, Chapel Hill, N.C., Nov. 25, 1999.

  • 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.

  • Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.

  • Nevada Natural Heritage Program. 1999. February 19-last update. List of sensitive plants. Online. Available: http://www.state.nv.us/nvnhp/sensplnt.htm. Accessed 1999, June 3.

  • Skinner, M.W., and B.M. Pavlik, eds. 1997 (1994). Inventory of rare and endangered vascular plants of California. 1997 Electronic Inventory Update of 1994 5th edition, California Native Plant Society, Special Publication No. 1, Sacramento.

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