Oreostemma alpigenum (Torr. & A. Gray) Greene ssp. haydenii (Porter) Semple
[= Oreostemma alpigenum var. haydenii]
Annotated by Mark Pollock, 24 Jul 2022. Sources: FPNW 2.

Idaho: Blaine County: Silver Lake. Drive north from Ketchum to the Silver Canyon Road #174 (15.9 mi). Stay right at each junction and park at end of road (~3.4 miles with 4WD) or park after 2.5 miles with 2WD. Trail is 1.6 miles long and steep¶ Elev. 9729 ft.
43.84009° N, 114.54534° W
Datum: WGS 84. Uncertainty: 10 meters. Coordinate Source: GPS.
mesic subalpine meadow¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶¶ ligules bluish purple. Achenes more or less strigillose all the way to the base.. Photos of the living specimen available at https://www.inaturalist.org/observations/127759829¶

Mark Pollock 461, Jul 23, 2022
SRP, Accession: 80451