Native to Alaska, Alberta, British Columbia, California, Colorado, Idaho, Montana, Nevada, North Dakota, Oregon, Saskatchewan, Utah, Washington, Wyoming, Yukon (source: POWO). Flora of the World documents 3 occurrences across 1 country.
Location
United States, Idaho, Idaho (McCall)
45.244, -115.588639
Location Remarks
1.9 km N of Warren Summit on FSR 340, at Mayflower Creek Bridge. Elev. 1904 m.
Collectors
No collectors specified
Location
United States, Idaho, Fremont (Island Park)
44.289333, -111.459389
Location Remarks
Intersection of Hwy 20 and Pinehaven Rd. ca. 16 km S of bridge in Island Park and 26 km N of Main St. in Ashton. Elev. 1868 m.
Collectors
Christopher Davidson, Sharon R. Christoph
Notes
Broad montane meadow sloping gently east.
Location
United States, Idaho, Valley (Cascade)
44.158, -116.118361
Location Remarks
Highway 55 c. 10 km north of the bridge at Banks. Mixed conifer forest along the N. Fork Payette River.
Collectors
Kingdom
Plantae
Phylum
Tracheophyta
Class
Magnoliopsida
Order
Ranunculales
Family
Ranunculaceae
Genus
Thalictrum
Specific Epithet
occidentale
Authorship
A.Gray
What is EDGE?
Evolutionary distinctiveness
Lower
ED 0.1
Part of a well-represented branch of the plant tree of life, with many close relatives.
Threat status
Modelled estimate
EDGE score
0.0
Global rank
#327,151 of 335,497
Top 98%
Extinction probability
10%