Erythronium grandiflorum Pursh var. albiflorum Hook.

Idaho: Kootenai County: Worley. Elev. 2700 ft.
47.40083° N, 116.91611° W,
Datum: WGS 84. Uncertainty: 10000 meters. Coordinate Source: GeoLocate.
Cut-over pine woodland. Stamens white, perianth segments whitish with yellow spot at base. [Unsure if the stamped: "Flora of Southeastern Washington and Adjacent Idaho; Edition 2, H. St. John" goes with the second determination]. Phenology: Flowers. Isotype: Erythronium idahoense St. John & G.N. Jones. Published 1929. Research Studies of the State College of Washington 1(2): 91. 1929.
Isotype: Erythronium grandiflorum Pursh var. idahoense (St. John & G.N. Jones) R.J. Davis. Published 1946. Contributions Toward a Flora of Idaho Leaflet 13: 13. 1946. Madroño 11(3): 143. 1951.

Harold St. John 3719, Mar 21, 1926
With C. English, G. N. Jones, E. Ransom, & L. Ridout
WTU, Accession: 99286, Barcode: WTU-V-000113