Delphinium lineapetalum Ewan × Delphinium multiplex (Ewan) Hitchc.
Annotated by Ben Legler, 2 Mar 2007. Sources: FNA. Remarks: See #1096 (D. multiplex) and #1096a (D. lineapetalum). WTU Herbarium.

Washington: Kittitas County: On Table Mountain Road (Forest Service Road 2101), 4 miles south of its junction with Forest Service Raod 2100.
47.24361° N, 120.55833° W,
Datum: WGS 84. Uncertainty: 10000 meters. Coordinate Source: GeoLocate.
On and east slope below the road, at the edge of a dry, rocky stream bed. With more typical multiplex and with D. lineapetalum. Phenology: Flowers.

D. Sutherland 1096b, Jul 21, 1965
WTU, Accession: 233331