Publication: Syst. Nat. 1: 355. 1817.
selected vouchers: WTU
Notes: FNA3: "Although Delphinium menziesii has often been confused with D . nuttallii, it may be distinguished by its consistently larger flowers and usually fewer flowers per plant. Interestingly, each species produces both blue-purple and yellowish flower colors in separate populations.
Delphinium menziesii subsp. menziesii hybridizes with D . trolliifolium and D . nuttallii ."