Roadless Areas
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Trifolium rollinsii

J. Gillett

Rollins Clover

G2Imperiled (G2G3Q) Found in 3 roadless areas NatureServe Explorer →
G2ImperiledGlobal Rank
Medium - lowThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.134222
Element CodePDFAB40240
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderFabales
FamilyFabaceae
GenusTrifolium
Synonyms
Trifolium macilentum var. rollinsii(J. Gillett) Barneby
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.
Taxonomic Comments
Has also been treated as a variety of Trifolium macilentum, rather than as a distinct species.
Conservation Status
Rank MethodLegacy Rank calculation - Excel v3.1x
Review Date2014-08-23
Change Date1999-01-12
Edition Date2014-08-23
Edition AuthorsMorefield, J., rev. A. Tomaino (2014)
Threat ImpactMedium - low
Range Extent<100 square km (less than about 40 square miles)
Number of Occurrences6 - 20
Rank Reasons
Known exclusively from high elevations in the Toiyabe Mountains of central Nevada. Hiking trails occur through some populations but threats are generally low.
Range Extent Comments
Known only from the Toiyabe Range in Nye County, Nevada.
Occurrences Comments
Approximately 12 extant occurrences (EO data in the NatureServe central database as of February 2014).
Threat Impact Comments
Threats are generally low. Hiking trails occur through some populations. One occurrence is a mile from the nearest road access though there is potential for future mining operations, increased recreational use, grazing impacts due to attractiveness and palatability of plant (EO data in the NatureServe central database as of February 2014).
Ecology & Habitat

Habitat

Steep slopes on talus, gravels, and in snow depressions near and above timberline (2700-3000 m elevation). Grows with Artemisia tridentata var. vaseyana, A. arbuscula, Symphoricarpos oreophila, Ericameria viscidiflora, Pinus flexilis, Linanthus nuttallii, Eriogonum umbellatum, Eriophyllum lanatum, Leptodactylon pungens, Phlox hoodii, P. longifolia, Arenaria kingii, Lupinus argenteus, Elymus elymoides, Leymus cinereus, Heuchera parvifolia, Pseudostellaria jamesii, Ericameria discoidea, E. suffruticosus, Eriogonum microthecum, Senecio integerrimus, Leucopoa kingii, Mertensia, etc. (Morefield 2001).
Terrestrial Habitats
Forest/WoodlandForest - ConiferShrubland/chaparralAlpineBare rock/talus/scree
Other Nations (1)
United StatesN2
ProvinceRankNative
NevadaS2Yes
Threat Assessments
ThreatScopeSeverityTiming
2 - Agriculture & aquacultureLarge - restrictedModerate or 11-30% pop. decline—
2.3 - Livestock farming & ranchingLarge - restrictedModerate or 11-30% pop. decline—
3 - Energy production & miningRestricted (11-30%)Moderate or 11-30% pop. decline—
3.2 - Mining & quarryingRestricted (11-30%)Moderate or 11-30% pop. decline—
6 - Human intrusions & disturbanceRestricted (11-30%)Moderate or 11-30% pop. decline—
6.1 - Recreational activitiesRestricted (11-30%)Moderate or 11-30% pop. decline—

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Plant Characteristics
Economic Value (Genus)Yes
Roadless Areas (3)
Nevada (3)
AreaForestAcres
Arc Dome - CarversHumboldt-Toiyabe National Forest3,846
Arc Dome - OphirHumboldt-Toiyabe National Forest5,652
Toiyabe RangeHumboldt-Toiyabe National Forest99,225
References (5)
  1. Barneby, R.C. 1989. Fabales. In A. Cronquist, A.H. Holmgren, N.H. Holmgren, J.L. Reveal, and P.K. Holmgren (eds.). Intermountain flora: Vascular plants of the Intermountain West, U.S.A. Vol. 3, Part B. New York Botanical Garden, Bronx. 279 pp.
  2. Isely, D. 1998. Native and naturalized Leguminosae (Fabaceae) of the United States (exclusive of Alaska and Hawaii). Monte L. Bean Life Science Museum, Brigham Young University; MLBM Press, Provo, Utah. 1007 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.