''Cymopterus goodrichii'' is a rare species of flowering plant in the carrot family known by the common name Toiyabe springparsley. It 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 ...

Nevada Nevada ( ; ) is a U.S. state, state in the Western United States, Western region of the United States. It is bordered by Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. N ...

in the United States, where it occurs in the Toiyabe and

West Humboldt Range The West Humboldt Range is a short mountain range in the western Great Basin in northwestern Nevada in the United States. Geography The mountain range runs for approximately southwest to northeast in northern Churchill County and southern Per ...

s.''Cymopterus goodrichii''.
The Nature Conservancy. This perennial herb grows up to 15 or 20 centimeters tall from a taproot and underground

root crown A root crown, also known as the root collar or root neck, is that part of a root system from which a stem arises. Since roots and stems have quite different vascular The blood vessels are the components of the circulatory system that transport ...

. There is a small rosette of leaves with intricately divided blades 1 or 2 centimeters long. 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 ...

arises on a purple flower stalk directly from the ground. It is a small

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 ...

about a centimeter wide containing white or purple flowers. The fruit is 5 to 8 millimeters long and has broad wings. This plant grows in bare scree of

slate Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. It is the finest grained foliated metamorphic rock. ...

and

limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...

in subalpine and

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. Other plants in the habitat include spreading wheatgrass (''Agropyron scribneri''), Michaux's wormwood (''Artemisia michuaxiana''), broadkeel milkvetch (''Astragalus platytropis''), dwarf alpine hawksbeard (''Crepis nana''), desert draba (''Draba arida''), dwarf mountain fleabane (''Erigeron compositus''), ballhead ipomopsis (''Ipomopsis congesta''), granite prickly phlox (''Linanthus pungens''), spike fescue (''Leucopoa kingii''), sky pilot (''Polemonium viscosum''), wax currant (''Ribes cereum''), and mountain gooseberry (''Ribes montigenum'').

References

External links

USDA Plants Profile for ''Cymopterus goodrichii''
{{Taxonbar, from=Q5199765 goodrichii Flora of Nevada Endemic flora of the United States Critically endangered flora of the United States Plants described in 1980