Identity
Unique IDELEMENT_GLOBAL.2.904970
Element CodePDCRA0A1T0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderRosales
FamilyCrassulaceae
GenusSedum
Concept ReferenceFlora of North America Editorial Committee (FNA). 2009. Flora of North America north of Mexico. Vol. 8. Magnoliophyta: Paeoniaceae to Ericaceae. Oxford University Press, New York. xxiv + 585 pp.
Taxonomic CommentsKartesz (1999) included Sedum borschii in S. leibergii, while FNA (vol. 8, 2009) here treats them as distinct.
Conservation Status
Rank Method Rank calculation - Biotics v2
Review Date2025-04-09
Change Date2025-04-09
Edition Date2025-04-09
Edition AuthorsJohnson, J. (2025)
Threat ImpactLow
Range Extent20,000-200,000 square km (about 8000-80,000 square miles)
Number of Occurrences21 - 80
Rank ReasonsSedum borschii is a perennial succulent herb that is found in the western United States, mostly in central Idaho, with one occurrence in western Montana. Despite having a limited range and relatively few occurrences, its inaccessible habitat and placement on federally-protected lands limit threats to the species, making it apparently secure.
Range Extent CommentsSedum borschii occurs in the western United States in far western Montana, across central Idaho to the Snake River Gorge (GBIF 2025, FNA 2009). Range extent was estimated using herbarium specimens, photo-based observations, and NatureServe Network occurrence data collected between 1994 and 2025 (GBIF 2025, iNaturalist 2025, NatureServe 2025, RARECAT 2025, SEINet 2025, CPNWH 2025).
Occurrences CommentsBy applying a 1 km separation distance to herbarium specimens, photo-based observations, and NatureServe Network occurrence data documented between 1994 and 2025, it is estimated that there are 27 occurrences rangewide (GBIF 2025, iNaturalist 2025, NatureServe 2025, RARECAT 2025, SEINet 2025, CPNWH 2025).
Threat Impact CommentsA few of the canyons and ridges where this species is found contain roads including one paved highway. Road maintenance and invasive species that spread along roads may be a minor threat. The Salmon River Canyon has burned twice in the past ten years but the effect of these fires on this species has not been evaluated. This species grows in bare, rocky areas with little fuel, so the fires have a low likelihood of damaging the plants directly. Increased erosion and invasive species after fires may be a concern.