Delphinium viridescens Leiberg
Annotated by Kirsten Tarp, Apr 1991. Remarks: Ownbey Herbarium, Washington State University.

Washington: Kittitas County: [locality and coordinates withheld; status in Washington: G2/S2 (Threatened; WANHP)],
Open meadow, in rich black loam where fairly moist, under and near Populus tremuloides. Growing with Veratrum eschscholtzii, Phleum alpinum, and Bronus inermis, roots not particularly large, but more fibrous than fleshy, firmly attached to the stems, mostly with a single (2, 3, 4) flowering stem that are strictly erect, from (3) 5 to 12 dm tall, plants "greasy" to the touch above, finely glandular pubescent, inflorescence simple to branched the side branches strongly ascending, racemes spike-like, although the lower flowers usually with pedicels longer than the calyx spur, the pedicels accending, flowers unique among our species, the smallest of any, definitely more greenish than either white or purple, the sepals very particuliarly revolute, greenish (with some yellow) and purplish veined, the spur noticeably purplish, about equal to the blade of the upper sepal, petals more purplish but still the lower ones noticeably greenish, deeply bifid, very conspicuously long yellow bearded, upper petals more brownish-purple but not deelpy so, the petals well concealing the light brownish-purplish-green anthers, leave rather uniformly transitional from the relatively few basal and lower cauline (withering by anthesis) to the numerous and overlapping middle and upper cauline, in this respect, and in the root system, resembling D. multiplex most closely. Phenology: Flowers.

C. Leo Hitchcock 20897, Jul 13, 1956
With C. V. Muhlick
WTU, Accession: 176655, Barcode: WTU-V-057472