''Artemisia rothrockii'' is a

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

n species of

sagebrush Sagebrush is the common name of several woody and herbaceous species of plants in the genus ''Artemisia''. The best known sagebrush is the shrub ''Artemisia tridentata''. Sagebrushes are native to the North American west. Following is an alph ...

known by the common names timberline sagebrush and Rothrock's sagebrush.''Artemisia rothrockii''.
NatureServe. 2012. ''Artemisia rothrockii'' 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 ...

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

, where it is native to parts of the

Sierra Nevada The Sierra Nevada () is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily ...

, the White Mountains, and the

San Bernardino Mountains The San Bernardino Mountains are a high and rugged mountain range in Southern California in the United States. Situated north and northeast of San Bernardino and spanning two California counties, the range tops out at at San Gorgonio Mountain � ...

. It has been recorded from the Kern Plateau,

Mount Dana Mount Dana is a mountain in the U.S. state of California. Its summit marks the eastern boundary of Yosemite National Park and the western boundary of the Ansel Adams Wilderness. At an elevation of , it is the second highest mountain in Yosemite ...

Angora Peak Angora Peak is a summit in the Sierra Nevada south of Lake Tahoe in El Dorado County, California. The summit marks a point on the eastern boundary of the Desolation Wilderness and is in the Eldorado National Forest. The peak is located south ...

, and the vicinity of Fallen Leaf Lake. It grows in the dry transition between mountain meadows and forests. It can also tolerate wet conditions, surviving waterlogging during

snowmelt In hydrology, snowmelt is surface runoff produced from melting snow. It can also be used to describe the period or season during which such runoff is produced. Water produced by snowmelt is an important part of the annual water cycle in many par ...

. ''Artemisia rothrockii'' grows at elevations between 2000 and 3500 meters. This mountain

shrub A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...

grows to heights of 20 to 50 centimeters, producing many upright stems from a narrow trunk. The evergreen foliage is dark green, glandular, sticky, and very aromatic. New twigs and leaves are somewhat woolly, but older parts are hairless. The narrow

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 ...

holds clusters of flower heads lined with rough, shiny, slightly hairy

phyllaries In botanical terminology, a phyllary, also known an involucral bract or tegule, is a single bract of the involucre of a composite flower. The involucre is the grouping of bracts together. Phyllaries are reduced leaf-like structures that form one o ...

and containing yellowish

disc floret The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w ...

s. The fruit is an

achene An achene (; ), also sometimes called akene and occasionally achenium or achenocarp, is a type of simple dry fruit produced by many species of flowering plants. Achenes are monocarpellate (formed from one carpel) and indehiscent (they do not ope ...

up to 2 millimeters long, sometimes with a pappus.''Artemisia rothrockii''.
The Jepson Manual eFlora, 2012. The species is named for American forester Joseph Trimbel Rothrock, 1839 – 1922.Gray, Asa. 1876. Proceedings of the American Academy of Arts and Sciences 19: 50, in footnote
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References

External links

Calflora Database: ''Artemisia rothrockii'' (Rothrock sagebrush)
* rothrockii Endemic flora of California Flora of the Sierra Nevada (United States) Natural history of the Transverse Ranges San Bernardino Mountains Plants described in 1876 {{asteroideae-stub