Delphinium geyeri Greene
New York Botanical Garden. Herbarium of Dr. Per Axel Rydberg. Purchased, 1899. Contributions from the New York Botanical Garden.
Species Description - This species is characterized by the strigose-canescent pubescence, the ascending instead of erect pedicels, the large blue flowers, the rather large bractlets, which often are half as long as the sepals and borne close under them. The species would not be placed in this group if it did not have squamellate seeds. These are, however, only finely so, rather large, about 3 mm. long, black, irregularly angled, but not wing-margined. The following specimens are in our herbaria.
Wyoming: Cheyenne, 1872, E. L. Greene; Laramie River, 1894, Aven Nelson, 400. Colorado: Fort Collins, 1896, C. F. Baker.
Wyoming United States of America North America| Colorado United States of America North America|