Frasera albicaulis Griseb. ssp. idahoensis (H. St. John) C.L. Hitchc.

Idaho: Adams: Just west of the Black Lake Road no. 112 and 1.5 miles north from the jct. of roads 105 & 112, ca. 6 miles NNE of Bear, Payette Natl. Forest.
45.10056° N, 116.62528° W,
Rocky hillside with an open grass-forb stand. Petals white with a bluish ridge on thier backs, but prob. not F. montana (likely an albino form of Frasera albicaulis). Verified by Robt. K. Moseley, Univ. Idaho Herb. asst. with note--very pale form but is tinged with blue at petal tip--crown scale >2 mm. Https://intermountainbiota.org/portal/collections/individual/index.php?occid=30824009. Phenology: flowering and fruiting.

R.T. Bingham 613, 1983-7-28
WS, Catalog: 286776, WS019181