About Delphinium nuttallii subsp. ochroleucum (Nutt.) M.J.Warnock
Delphinium nuttallii subsp. ochroleucum has erect, divided stems covered in fine, upward-curving hairs. Its erect leaves measure 2 to 3 inches long and are divided nearly to their center; each of the leaf's three main lobes is further divided into even smaller lobes. The plant produces a sticky, spike-shaped inflorescence that holds many individual flowers, each on a stalk 1 inch long or shorter. Its flowers consist of five light to deep blue sepals, a long slender light blue spur, two upper pale blue notched petals, and two bright blue lateral petals. This subspecies can be confused with Delphinium nuttallianum, which is also named for Thomas Nuttall, but D. nuttallianum is much shorter. This taxon is distributed across multiple counties in Washington and Oregon, United States. In southern Washington, it occurs in Cowlitz, Clark, Skamania, Klickitat, and Benton counties; in central-western Washington it is found in Grays Harbor, Mason, Thurston, and Pierce counties. In Oregon, it is present in southern and eastern counties: Douglas, Josephine, Jackson, Klamath, Lake, Harney, Malheur, Crook, Grant, Umatilla, Union, and Wallowa; it also occurs in northwestern Oregon's Columbia, Multnomah, Clackamas, Yamhill, Hood River, and Wasco counties.
