Home/Species/ Pahute Green-gentian

Frasera pahutensis

Reveal

Pahute Green-gentian

G3Vulnerable (G3Q) Found in 4 roadless areas NatureServe Explorer →

G3VulnerableGlobal Rank

Identity

Unique IDELEMENT_GLOBAL.2.158385

Element CodePDGEN050G0

Record TypeSPECIES

ClassificationSpecies

Classification StatusProvisional

Name CategoryVascular Plant

Endemicendemic to a single state or province

KingdomPlantae

PhylumAnthophyta

ClassDicotyledoneae

OrderGentianales

FamilyGentianaceae

GenusFrasera

Concept Reference

U.S. Fish and Wildlife Service (USFWS). 1993. Endangered and threatened wildlife and plants; review of plant taxa for listing as endangered or threatened species. Federal Register, 50 CFR Part 17, 58(188):51144-51190.

Taxonomic Comments

Kartesz (1999 checklist) places as synonym of F. albicaulis var. modocensis of northeastern California and Oregon. Nevada Heritage Program (Jim Morefield) considers this a distinct species, endemic to south-central Nevada and considerably disjunct from the other Frasera. LEM 16Aug00.

Conservation Status

Review Date2000-08-17

Change Date1996-05-24

Edition Date1997-12-12

Edition AuthorsRoth, E., rev. KMW-NVHP (9/97), rev. D. Gries (1997), rev. NVHP (7/00), rev. L. Morse (2000)

Range Extent<100-250 square km (less than about 40-100 square miles)

Number of Occurrences21 - 80

Rank Reasons

Frasera pahutensis is known from about 20-50 occurrences all in Nye County, Nevada, mostly in the Central Nevada ranges. While generally unthreatened at present, there is some possibility that grazing, insect predation, road construction, off-road vehicle activity, and mining are potential threats to this species.

Range Extent Comments

Only in north central Nye County, Nevada. Total acreage of the known occurences is 387 acres. (J. Morefield, discussion with Larry Morse, 17Aug00).

Occurrences Comments

About 20 EO's (with separation distance 1km), with about 51 smaller occurrences (sub-EOs) at 1/10 mile separation distance. Primarily in the central Nevada ranges, but also disjuctly in another area, all in Nye Co., Nevada. (Information from Jim Morefield, Nevada HP, 17Aug00).

Threat Impact Comments

Relatively unthreatened due to remoteness of most habitat. Some possible threats from grazing by animals, insect predation, mining, road construction, off-road vehicles. Areas all with activities that are uncontrolled; no verification possible; mining and grazing on Forest Service sites.

Ecology & Habitat

Habitat

Gravelly slopes and valley bottoms. Elevation 2195-2410 meters. On volcanic soils, frequently on burns; perhaps seral sp. ?

Other Nations (1)

United StatesN3

Province	Rank	Native
Nevada	S3	Yes

Plant Characteristics

Economic Value (Genus)No

Roadless Areas (4)

Nevada (4)

Area	Forest	Acres
Georges Canyon	Humboldt-Toiyabe National Forest	108,551
Rock Canyon	Humboldt-Toiyabe National Forest	31,552
Spanish Peak	Humboldt-Toiyabe National Forest	31,520
Table Mtn. - East	Humboldt-Toiyabe National Forest	87,789

References (5)

Kartesz, J.T., The Biota of North America Program (BONAP). 2014. North American Plant Atlas. Chapel Hill, N.C. [http://bonap.net/napa]
Morefield, J.D. 1992. Interim status report for <i>Frasera pahutensis</i> Reveal. Nevada Natural Heritage Program, Carson City, prepared for the Toiyabe National Forest, Sparks, Nevada.
Morefield, Jim. Personal Communication. Botanist, Nevada Natural Heritage Program, Department of Conservation and Natural Resources, Carson City, Nevada.
Reveal, J. L. 1971. A new <i>Frasera </i>from southern Nevada (Gentianaceae). Bulletin of the Torrey Botanical Club 98: 107-108.
U.S. Fish and Wildlife Service (USFWS). 1993. Endangered and threatened wildlife and plants; review of plant taxa for listing as endangered or threatened species. Federal Register, 50 CFR Part 17, 58(188):51144-51190.