Home/Species/ Waxflower

Jamesia tetrapetala

N.& P. Holmgren

Waxflower

G2Imperiled Found in 3 roadless areas NatureServe Explorer →

G2ImperiledGlobal Rank

UnknownThreat Impact

Identity

Unique IDELEMENT_GLOBAL.2.144479

Element CodePDHDR02020

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

Endemicendemic to a single nation

KingdomPlantae

PhylumAnthophyta

ClassDicotyledoneae

OrderRosales

FamilyHydrangeaceae

GenusJamesia

Other Common Names

fourpetal cliffbush (EN) Fourpetal Cliffbush (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.

Taxonomic Comments

Genus of two species.

Conservation Status

Rank MethodLegacy Rank calculation - Excel v3.1x

Review Date2014-04-24

Change Date1990-09-05

Edition Date2014-04-24

Edition AuthorsKnight, Teri, rev. A. Treher (2013)

Threat ImpactUnknown

Range Extent5000-20,000 square km (about 2000-8000 square miles)

Number of Occurrences6 - 20

Rank Reasons

Known from 4 nearby mountain ranges in eastern Nevada and adjacent western Utah, with less than 11 EOs. Mining is a potential threat but surveys are needed to asses on the ground threats.

Range Extent Comments

Endemic to the eastern Great Basin region. In Nevada: Highland, Snake, and Grant ranges. In Utah: House Range from 2000-3300 m elevation.

Occurrences Comments

Eight known occurrences: 7 in Nevada and 1 in Utah in 4 adjacent mountain ranges and three counties.

Threat Impact Comments

Mining is the only known threat but threats have not been evaluated at most sites.

Ecology & Habitat

Habitat

Crevices in limestone cliffs. 2000-3300 m elevation.
Grows with chokecherry, mountain mahogany, Ephedra, and sagebrush in crevices in Paleozoic limestone outcrops and talus at cliff bases at around 7,600 feet elevation (Utah Native Plant Society 2005).

Terrestrial Habitats

Shrubland/chaparralBare rock/talus/screeCliff

Other Nations (1)

United StatesN2

Province	Rank	Native
Nevada	S2	Yes
Utah	S2	Yes

Threat Assessments

Threat	Scope	Severity	Timing
3 - Energy production & mining	Unknown	Unknown	Unknown
3.2 - Mining & quarrying	Unknown	Moderate - slight	Unknown

Plant Characteristics

Economic Value (Genus)No

Roadless Areas (3)

Nevada (3)

Area	Forest	Acres
Snake - Chokecherry	Humboldt-Toiyabe National Forest	30,845
Snake - Murphy	Humboldt-Toiyabe National Forest	27,064
Snake - Pole Cyn	Humboldt-Toiyabe National Forest	766

References (5)

Flora of North America Editorial Committee (FNA). 2016. Flora of North America north of Mexico. Vol. 12. Magnoliophyta: Vitaceae to Garryaceae. Oxford Univ. Press, New York. xxiv + 603 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.
Tiehm, A. 1990. More new plants from Nevada. Nevada Native Plant Society Newsletter 16(4): 4-5.
Utah Native Plant Society. 2003-2005. Utah Rare Plant Guide. Salt Lake City, UT. Online. Available: http://www.utahrareplants.org. (Accessed 2005)
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.

Jamesia tetrapetala

Habitat

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