''Cymopterus davisii'' is a species of flowering plant in the carrot family known by the common name Davis's springparsley. This small, flat,

taproot A taproot is a large, central, and dominant root from which other roots sprout laterally. Typically a taproot is somewhat straight and very thick, is tapering in shape, and grows directly downward. In some plants, such as the carrot, the taproo ...

ed perennial is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

Idaho Idaho ( ) is a state in the Pacific Northwest region of the Western United States. To the north, it shares a small portion of the Canada–United States border with the province of British Columbia. It borders the states of Montana and Wyom ...

in the United States, where it occurs in the

Albion Mountains The Albion Mountains are a mountain range in the U.S. states of Idaho (~99%) and Utah (~1%), spanning Cassia County, Idaho and barely reaching into Box Elder County, Utah. The highest point in the range is Cache Peak at , and the range is a par ...

. The plant is found in the Albion Division of the Minidoka Ranger District of

Sawtooth National Forest Sawtooth National Forest is a United States National Forest, National Forest that covers 2,110,408 acres (854,052 ha) in the U.S. states of Idaho (~96 percent) and Utah (~4 percent). Managed by the U.S. Forest Service in the United States Depart ...

. It reaches approximately in height with a short stem that is sheathed by fibrous leaf bases. Numerous leaves form a whorl around yellow-flowered umbels. Davis's springparsley was first collected by Ray J. Davis in 1939, who was a botany professor at

Idaho State University , mottoeng = "The truth will set you free" , established = , former_names = Academy of Idaho(1901–1915)Idaho Technical Institute(1915–1927)University of Idaho—Southern Branch(1927–1947)Idaho State ...

. However, it was not identified as a new species until 1985 by Ron Hartman, who named it after Davis. There are three known populations of the plant. The two most extensive are on Mount Independence (a single population with Cache Peak) and Mount Harrison, and there is a smaller population to the south on Graham Peak. It occurs in alpine communities that include another Albion Mountains endemic, Christ's Indian paintbrush.

References

davisii Flora of Idaho Cassia County, Idaho Endemic flora of the United States Plants described in 1985 {{Apiaceae-stub