This is a list of plant and animal

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

, subspecies and

varieties Variety may refer to: Arts and entertainment Entertainment formats * Variety (radio) * Variety show, in theater and television Films * ''Variety'' (1925 film), a German silent film directed by Ewald Andre Dupont * ''Variety'' (1935 film), ...

that are

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 else ...

Mendocino County Mendocino County (; ''Mendocino'', Spanish for "of Mendoza) is a county located on the North Coast of the U.S. state of California. As of the 2020 census, the population was 91,601. The county seat is Ukiah. Mendocino County consists whol ...

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...

, or to Mendocino and no more than one neighboring county.

Mendocino County only

Flora

*''

Chorizanthe howellii ''Chorizanthe howellii'' is a species of flowering plant in the buckwheat family known by the common names Mendocino spineflower and Howell's spineflower. It is endemic to coastal Mendocino County, California, where it is known only from the sand ...

'', a flowering plant in the buckwheat family found only near Fort Bragg *'' Cuscuta pacifica var. papillata'', a parasitic plant found only in the salt marshes of Mendocino county *'' Eriogonum kelloggii'', a species of buckwheat found only on Red Mountain near Leggett *'' Harmonia guggolziorum'', a flowering

aster Aster or ASTER may refer to: Biology * ''Aster'' (genus), a genus of flowering plants ** List of ''Aster'' synonyms, other genera formerly included in ''Aster'' and still called asters in English * Aster (cell biology), a cellular structure shap ...

found in two locations near Hopland *'' Limnanthes bakeri'', a meadowfarm plant known in only 20 locations near Willits *'' Pinus contorta var. bolanderi'', the Mendocino shore pine tree, a variety of the more widespread lodgepole pine *''

Sedum eastwoodiae ''Sedum eastwoodiae'' is a rare species of flowering plant of the stonecrop Crassulaceae family. It is known by its common name Red Mountain stonecrop. It is Endemism, endemic to Mendocino County, California, Mendocino County, California, where i ...

'', a flower in the stonecrop family found only on Red Mountain near Ukiah

Fauna

*''

Aplodontia rufa nigra The mountain beaver (''Aplodontia rufa'')Other names include mountain boomer, ground bear, giant mole, gehalis, lesser sasquatch, sewellel, suwellel, showhurll, showtl, and showte, as well as a number of Chinookan and other Native American terms ...

'' (Point Arena mountain beaver), a mid-sized

rodent Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are n ...

regarded as a

living fossil A living fossil is an extant taxon that cosmetically resembles related species known only from the fossil record. To be considered a living fossil, the fossil species must be old relative to the time of origin of the extant clade. Living foss ...

and found only near Point Arena *'' Opercularia ampluscolonia'', a

protist A protist () is any eukaryotic organism (that is, an organism whose cells contain a cell nucleus) that is not an animal, plant, or fungus. While it is likely that protists share a common ancestor (the last eukaryotic common ancestor), the exc ...

that inhabits ponds in Mendocino County *'' Plebejus idas lotis'' (Lotis blue butterfly), a possibly extinct gossamer-winged butterfly last recorded near Mendocino town in 1983 *'' Speyeria zerene behrensii'' (Behrens' silverspot butterfly), found only near Point Arena

Mendocino County and one adjacent county

In addition, the following are endemic to an area contained in Mendocino and only one neighboring county:

Flora

*'' Arctostaphylos mendocinoensis'', a species of

manzanita Manzanita is a common name for many species of the genus ''Arctostaphylos''. They are evergreen shrubs or small trees present in the chaparral biome of western North America, where they occur from Southern British Columbia and Washington to Or ...

found only in Mendocino and Sonoma counties *'' Astragalus agnicidus'', a species of milkvetch found only in Mendocino and Humboldt counties *'' Cupressus pygmaea'', a species of

cypress tree Cypress is a common name for various coniferous trees or shrubs of northern temperate regions that belong to the family Cupressaceae. The word ''cypress'' is derived from Old French ''cipres'', which was imported from Latin ''cypressus'', the la ...

found only in Mendocino and Sonoma counties *'' Lewisia stebbinsii'', a flowering

purslane Purslane is a common name for several mostly unrelated plants with edible leaves and may refer to: * Portulacaceae, a family of succulent flowering plants, and especially: ** ''Portulaca oleracea'', a species of ''Portulaca'' eaten as a leaf vegeta ...

found only in Mendocino and

Trinity The Christian doctrine of the Trinity (, from 'threefold') is the central dogma concerning the nature of God in most Christian churches, which defines one God existing in three coequal, coeternal, consubstantial divine persons: God th ...

counties *'' Veratrum fimbriatum'', the fringed corn lily, a relative of the lily found only in Mendocino and Sonoma counties

Fauna

*'' Helminthoglypta arrosa pomoensis'', the Pomo Bronze Shoulderband, a land snail found in redwood forests in Mendocino County (in the Big River,

Navarro River , name_native_lang = , name_other = , name_etymology = , image = Navarro_River.jpg , image_size = , image_caption = The Navarro River near its mouth. , map = , map_size ...

, and Russian Gulch watersheds) and Sonoma County

Notes

{{Flora of the United States by political division, state=expanded Natural history of Mendocino County, California * *

Mendocino County only

Flora

Fauna

Mendocino County and one adjacent county

Flora

Fauna

See also

Notes