Oreostemma alpigenum (Torr. & A. Gray) Greene var. alpigenum
Annotated by Charles F. Williams, 1 Oct 2013. Sources: USDA-NRCS Plants Database. Remarks: taxonomic update

Idaho: Fremont County: Site 14. Targhee National Forest. 400-800m west of the Yellowstone National Park boundary along the south fork of Split Creek; Elevation 2360m. Elev. 2360 m.
44.3474321° N, 111.1207504° W; T12N R45E S23 SW 1/4
Datum: WGS 84. Uncertainty: 500 meters. Coordinate Source: BioGeomancer.
I found only one clump in the dry bed of Split Creek near the Yellowstone National Park boundary. When I looked for it the following year, it was gone, so it may have been an erratic. Associated with Pinus contorta, Dodecatheon pulchellum, and Phlox multiflora. The variety is haydenii (Porter) Cronq. Voucher: Whitehead, G.S. 1983. M.S., Idaho State U. Flora of the Island Park Geothermal Study Area. Duplicates to: IDS, RM. Phenology: Flowers.

Gordon S. Whitehead 414, 6/23/1977
IDS, Accession: 2012.012, Barcode: IDS0018518