''Cymopterus evertii'' is a species of flowering plant in the carrot family known by the common names Evert's springparsley and Evert's waferparsnip. It is native to

Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it ...

and

Wyoming Wyoming () is a U.S. state, state in the Mountain states, Mountain West subregion of the Western United States. It is bordered by Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho to the west, Utah to the south ...

in the United States.''Cymopterus evertii''.
NatureServe.Moore, L. and S. Friedley. (2004, November 19)
''Cymopterus evertii'' Hartman & Kirkpatrick (Evert’s springparsley): A technical conservation assessment.
nline USDA Forest Service, Rocky Mountain Region. This plant was first discovered in 1981 and described in 1986.Hartman, R. L and R. S. Kirkpatrick. (1986)
A new species of cymopterus (Umbelliferae) from northwestern Wyoming.
''Brittonia'' 38(4) 420-26. It is a small perennial herb forming a low tuft of herbage from a branching

caudex A caudex (plural: caudices) of a plant is a stem, but the term is also used to mean a rootstock and particularly a basal stem structure from which new growth arises.pages 456 and 695 In the strict sense of the term, meaning a stem, "caudex" is m ...

covered in the persistent bases of previous seasons' leaves. The leaves are up to 13 centimeters long and 1.6 wide. They are divided into many small sections. When crushed they smell like orange peels. The

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

is an

umbel In botany, an umbel is an inflorescence that consists of a number of short flower stalks (called pedicels) that spread from a common point, somewhat like umbrella ribs. The word was coined in botanical usage in the 1590s, from Latin ''umbella'' "p ...

of tiny white flowers. This plant is found in northwestern Wyoming and northeastern Utah. It may be more appropriately described as a Wyoming plant with a small disjunct occurrence in Utah. It grows in a number of mountain and foothill habitat types, mostly located in the

subalpine zone Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial f ...

, with some at lower elevations and some in the

alpine climate Alpine climate is the typical weather (climate) for elevations above the tree line, where trees fail to grow due to cold. This climate is also referred to as a mountain climate or highland climate. Definition There are multiple definitions of ...

s higher up. Most occurrences are located in the open on rocky substrates with little vegetative cover. There may be a few trees in surrounding terrain, such as limber pine, Engelmann spruce, and Douglas-fir. The soils are mostly volcanic. It can be found in scree and on

fell field A fellfield or fell field comprises the environment of a slope, usually alpine or tundra, where the dynamics of frost (freeze and thaw cycles) and of wind give rise to characteristic plant forms in scree interstices. Soil dynamics The freeze-thaw ...

s. Many occurrences are in the Absaroka Mountains. There are few serious threats to the species because it occurs on largely inaccessible terrain.

References

External links

USDA Plants Profile
{{Taxonbar, from=Q5199762 evertii Flora of Utah Flora of Wyoming Endemic flora of the United States Endangered flora of the United States Plants described in 1986