Delphinium glaucescens Rydb.
Annotated by Paul T. Sawyer, Jun 1969.

Montana: Madison County: Slope to the south of the head of S. Fork Warm Creek, Gravelly Range.
T09S R39E S36
Datum: WGS 84. Uncertainty: 5407 meters. Coordinate Source: Digital Map. Given PLSS locality does not match locality description.
Deep soil near and under groes of Picea engelmanii and Pinus albicaulis; soil more or less moist but not at all wet. Plants many-stemmed from a fairly large, firous root system; stems fistulose; sepals blue, spreading but somewhat cupped forward, narrow, somewhat pointed erose; lower petals about the same color, bilobed about half their length; racemes rather loose, the pedicels spreading-ascending; spur hooked to straight; plants associated with Mertensia, Pedicularis, etc., abundant. Phenology: Flowers.

C. Leo Hitchcock 20919, Jul 26, 1957
ID, Accession: 38797, Barcode: ID040719