Delphinium willametense
Annotated by W.N. Suksdorf, 1893.

Oregon: Clackamas: Near Milwaukie on the Willamette River.
45.446932° N, 122.650591° W,
Datum: WGS84.
Low grounds. HerbariumSpecimenDuplicate: Delphinium willametense Isotype. Deutsche Botanische Monatsschrift 16: 210, 1898. Sheet 2 of 2. Now considered a synonym of Delphinium leucophaeum Greene.; Flowers greenish or yellowish white, upper petals bright blue. Https://intermountainbiota.org/portal/collections/individual/index.php?occid=30884356. Phenology: flowering and fruiting. Isotype.

Wilhelm N. Suksdorf 2225, Jul 16, 1893
WS, Catalog: 110125, WS001059