Home/Species/ Sacajawea's Bitterroot

Lewisia sacajaweana

B.L. Wilson & E. Rey-Vizgirdas

Sacajawea's Bitterroot

G2Imperiled Found in 1 roadless area NatureServe Explorer →

G2ImperiledGlobal Rank

UnknownThreat Impact

Identity

Unique IDELEMENT_GLOBAL.2.814970

Element CodePDPOR040L0

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

Endemicendemic to a single state or province

KingdomPlantae

PhylumAnthophyta

ClassDicotyledoneae

OrderCaryophyllales

FamilyMontiaceae

GenusLewisia

Other Common Names

Sacajawea's bitterroot (EN)

Concept Reference

Wilson, B.L., V.D. Hipkins, E. Rey-Virgirdas and T. N. Kaye. 2005a. Variation in Lewisia kelloggii (Portulacaceae) with description of a new species endemic to Idaho. Western North American Naturalist 65(3):345-358.

Taxonomic Comments

According to Wilson et al. (2005), Lewisia sacajaweana is a taxon related to Lewisia kelloggii but with consistent morphological difference to justify species status. Plants in Idaho, previously considered L. kelloggii are now treated as L. sacajaweana, endemic to Idaho. L. kelloggii is considered only present in California.

Conservation Status

Rank MethodExpertise without calculation

Review Date2015-07-31

Change Date2015-07-31

Edition Date2015-07-31

Edition AuthorsAnions, M., rev. A. Treher (2015)

Threat ImpactUnknown

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

Number of Occurrences21 - 80

Rank Reasons

This species is endemic to the mountains of central Idaho within 6-7 counties and approximately 30 occurrences. Populations of Lewisia sacajaweana were previously thought to be Lewisia kelloggii (Kellogg's lewisia) but described as a distinct species in 2005.

Range Extent Comments

Endemic to central Idaho in montane to subalpine habitats.

Threat Impact Comments

Most sites have few threats or minimal threats. Impacts from trails (horse and foot tracks), unauthorized ATV use, roads (turn around at site or maintenance/construction), trampling by sheep at one site, potentially wildfire, and a few sites could have mining and logging in the future.

Ecology & Habitat

Habitat

Occurs in montane and subalpine habitats at elevations of 5,000 to 9,500 feet.

Other Nations (1)

United StatesN2

Province	Rank	Native
Idaho	S2	Yes

Plant Characteristics

Economic Value (Genus)No

Roadless Areas (1)

Idaho (1)

Area	Forest	Acres
Peace Rock	Boise National Forest	191,734

References (1)

Wilson, B.L., V.D. Hipkins, E. Rey-Virgirdas and T. N. Kaye. 2005a. Variation in <i>Lewisia kelloggii </i>(Portulacaceae) with description of a new species endemic to Idaho. Western North American Naturalist 65(3):345-358.