Delphinium menziesii DC. ssp. nuttallianum P.T. Sawyer
Annotated by Paul T. Sawyer, May 1969. Remarks: Montana State University

Montana: Mineral County: At De Borgia.
47.375764° N, 115.345981° W,
Datum: WGS 84. Uncertainty: 5306 meters. Coordinate Source: GeoLocate.
Open grassland at edge of lodge pole pine forest. Plants rather firmly attached to the very small, single to several, tuberous, fascicled roots; stems either glabrous or finely retrorsely pubescent; sepals deep blue, with very little purple, well spread, nearly equal, the spur nearly 2x as long as the blade of the upper sepal; lower petals brownish-purple to purple, conspicuously long-hairy, bifid ca 2/5 of length; upper petals nearly white, lightly or not at all veined with purple; basal leaves already withering, the site not a particularly favorable one for lush growth. Phenology: Flowers.

C. Leo Hitchcock 20855, May 30, 1956
With C.V. Muhlick
ID, Accession: 44219, Barcode: ID040728