Roadless Areas
Home/Species/ Jaeger's Ivesia

Ivesia jaegeri

Munz & Johnston

Jaeger's Ivesia

G2Imperiled (G2G3) Found in 4 roadless areas NatureServe Explorer →
G2ImperiledGlobal Rank
High - mediumThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.152916
Element CodePDROS0X080
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderRosales
FamilyRosaceae
GenusIvesia
Other Common Names
Jaeger's mousetail (EN) Jaeger's Mousetail (EN)
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.
Conservation Status
Rank MethodLegacy Rank calculation - Excel v3.1x
Review Date2015-08-31
Change Date2000-06-15
Edition Date2015-08-31
Edition AuthorsJ. Nachlinger (1997), rev. A. Tomaino (2015)
Threat ImpactHigh - medium
Range Extent250-5000 square km (about 100-2000 square miles)
Number of Occurrences21 - 80
Rank Reasons
Restricted to the Spring Mountains in southern Nevada, where it is locally common, and the Clark Mountains in southeast California. Approximately 26 populations are known. Threatened by rock climbing, scrambling, and bouldering.
Range Extent Comments
"Known only from the Spring Mountains, Clark County, Nevada, and the Clark Mountains, San Bernardino County, California" (Flora of North America Editorial Committee 2014).
Occurrences Comments
Restricted to 24 sites scattered in the Spring Mountains in southern Nevada, where it is locally common. Also known from only 2 occurrences in the Clark Mountains in southeast California (Element occurrence data in the NatureServe central database as of July 2015).
Threat Impact Comments
Threatened by rock climbing, scrambling, and bouldering. Some sites are near hiking and biking trails and may be vulnerable to trampling and invasive plants (Element occurrence data in the NatureServe central database as of July 2015).
Ecology & Habitat

Habitat

"Dry, rocky outcrops of limestone origin, usually crevices of more or less vertical protected cliffs or boulders, mainly in conifer woodlands" at 1600–3600 m (Flora of North America Editorial Committee 2014). "Growing in the shade in crevices of limestone cliffs or large rocks, associated with Cercocarpus ledifolius, Pinus flexilis, P. ponderosa var. scopulorum, and Populus tremulides var. aurea" (Clokey 1951). Pinyon and juniper woodland, upper montane coniferous forest / carbonate, rocky (California Native Plant Society 2015).
Terrestrial Habitats
Forest/WoodlandForest - ConiferWoodland - ConiferBare rock/talus/screeCliff
Other Nations (1)
United StatesN2
ProvinceRankNative
NevadaS2Yes
CaliforniaS1Yes
Threat Assessments
ThreatScopeSeverityTiming
6 - Human intrusions & disturbanceLarge (31-70%)Serious - moderate—
6.1 - Recreational activitiesLarge (31-70%)Serious - moderate—
8 - Invasive & other problematic species, genes & diseasesLarge (31-70%)Moderate or 11-30% pop. decline—
8.1 - Invasive non-native/alien species/diseasesLarge (31-70%)Moderate or 11-30% pop. decline—

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Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)No
Roadless Areas (4)
Nevada (4)
AreaForestAcres
Angel Peak NorthHumboldt-Toiyabe National Forest12,577
Charleston - CarpenterHumboldt-Toiyabe National Forest17,828
Charleston - Macks CynHumboldt-Toiyabe National Forest11,378
PotosiHumboldt-Toiyabe National Forest5,145
References (10)
  1. Baldwin, B. G., D. H. Goldman, D. J. Keil, R. Patterson, T. J. Rosatti, and D. H. Wilken, eds. 2012. The Jepson manual: vascular plants of California. 2nd edition. University of California Press, Berkeley, CA. 1568 pp.
  2. California Native Plant Society (CNPS). 2001. Inventory of Rare and Endangered Plants of California (sixth edition). Rare Plant Scientific Advisory Committee, David P. Tibor, Convening Editor. California Native Plant Society. Sacramento, CA. x + 388pp.
  3. California Native Plant Society (CNPS). 2015. Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society, Sacramento, CA. Online. Available: http://www.rareplants.cnps.org (accessed 2015).
  4. Clokey, I.W. 1951. Flora of the Charleston Mountains, Clark County, Nevada. University of California Publications in Botany 24: 1-274.
  5. Flora of North America Editorial Committee (FNA). 2014b. Flora of North America north of Mexico. Vol. 9. Magnoliophyta: Picramniaceae to Rosaceae. Oxford University Press, New York. xxiv + 713 pp.
  6. Kartesz, J.T. 1988. A flora of Nevada. Ph.D. dissertation. Univ. of Nevada, Reno. 3 volumes. 1729 pp.
  7. 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.
  8. 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.
  9. 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.
  10. Töpel, M., A. Antonelli, C. Yesson, and B. Eriksen. 2012. Past climate change and plant evolution in western North America: a case study in Rosaceae. PLoS ONE 7(12): 16 pp.