Roadless Areas
Home/Species/ Hidden Ivesia

Ivesia cryptocaulis

(Clokey) Keck

Hidden Ivesia

G2Imperiled Found in 1 roadless area NatureServe Explorer →
G2ImperiledGlobal Rank
Medium - lowThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.149003
Element CodePDROS0X060
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderRosales
FamilyRosaceae
GenusIvesia
Other Common Names
Charleston Peak mousetail (EN) Charleston Peak 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 Date2014-04-28
Change Date1997-03-04
Edition Date2014-04-28
Edition AuthorsNachlinger, J., J. Morefield, & K. Maybury, rev. A. Tomaino (2014)
Threat ImpactMedium - low
Range Extent<100 square km (less than about 40 square miles)
Number of Occurrences1 - 20
Rank Reasons
A Nevada endemic known only from 2 alpine areas (7 sites) in the Spring Mountains. Very localized. Threats include dispersed recreational activities (hiking and camping), equestrian trampling, and potential competition from exotic species.
Range Extent Comments
Endemic to the Spring Mountains of Clark County, Nevada. All documented occurrences are within 10 sq km (EO data in the NatureServe central database as of February 2014).
Occurrences Comments
Approximately 2 to 7 extant occurrences (EO data in the NatureServe central database as of February 2014).
Threat Impact Comments
Threats include dispersed recreational activities (hiking and camping), equestrian trampling, and potential competition from exotic species. There are minimal human threats in steep and difficult to access areas.
Ecology & Habitat

Habitat

Alpine flats, gravelly slopes, and limestone slide rock above treeline at 3300-3620 m elevation. Moist to dry carbonate scree, talus, outcrops, and gravelly soils on steep slopes, ridges, and alpine flats in the alpine and upper subalpine conifer zones (Morefield 2001).
Terrestrial Habitats
Forest/WoodlandForest - ConiferAlpineBare rock/talus/scree
Other Nations (1)
United StatesN2
ProvinceRankNative
NevadaS1Yes
Threat Assessments
ThreatScopeSeverityTiming
6 - Human intrusions & disturbanceLarge - restrictedModerate - slight—
6.1 - Recreational activitiesLarge - restrictedModerate - slight—
8 - Invasive & other problematic species, genes & diseasesSmall (1-10%)Slight or 1-10% pop. decline—
8.1 - Invasive non-native/alien species/diseasesSmall (1-10%)Slight or 1-10% pop. decline—

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Plant Characteristics
Economic Value (Genus)No
Roadless Areas (1)
Nevada (1)
AreaForestAcres
Charleston - CarpenterHumboldt-Toiyabe National Forest17,828
References (7)
  1. Crosby, V. 1978. Status report for Ivesia cryptocaulis. Unpublished report.
  2. 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.
  3. Kartesz, J.T. 1988. A flora of Nevada. Ph.D. dissertation. Univ. of Nevada, Reno. 3 volumes. 1729 pp.
  4. 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.
  5. 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.
  6. Mozingo, H.N., and M. Williams. 1980. The threatened and endangered plants of Nevada. U.S. Fish and Wildlife Service and Bureau of Land Management, Portland, OR. 268 pp.
  7. Weixelman, D., and D. Atwood. 1990. Toiyabe National Forest sensitive plants field guide. U.S. Forest Service, Intermountain Region, Ogden, UT. 123 pp.