''Coreopsis bigelovii'' is a species of flowering plant in the daisy or sunflower family,

Asteraceae 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 ...

, with the common names Bigelow coreopsis and Bigelow's tickseed.Mojave Desert Wildflowers, Pam MacKay, 2nd Ed., p. 206 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 els ...

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 ...

. The plant is known from the southern

California Coast Ranges The Coast Ranges of California span from Del Norte or Humboldt County, California, south to Santa Barbara County. The other three coastal California mountain ranges are the Transverse Ranges, Peninsular Ranges and the Klamath Mountains. Ph ...

, southwestern

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 primari ...

Transverse Ranges The Transverse Ranges are a group of mountain ranges of southern California, in the Pacific Coast Ranges physiographic region in North America. The Transverse Ranges begin at the southern end of the California Coast Ranges and lie within San ...

, and the

Mojave Mojave or Mohave most often refers to: *Mojave Desert *Mojave River *Mohave people *Mojave language Mojave or Mohave may also refer to: Places * Fort Mojave Indian Reservation * Mohave County, Arizona * Mohave Valley, a valley in Arizona * Mohav ...

and

Colorado Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes ...

deserts. It is widespread in a number of habitat types from

Merced Merced (; Spanish for "Mercy") is a city in, and the county seat of, Merced County, California, United States, in the San Joaquin Valley. As of the 2020 Census, the city had a population of 86,333, up from 78,958 in 2010. Incorporated on A ...

and Inyo Counties south to

San Diego County San Diego County (), officially the County of San Diego, is a county in the southwestern corner of the U.S. state of California. As of the 2020 census, the population was 3,298,634, making it California's second-most populous county and the f ...

Description

''Coreopsis bigelovii'' is

annual Annual may refer to: * Annual publication, periodical publications appearing regularly once per year **Yearbook **Literary annual * Annual plant *Annual report *Annual giving *Annual, Morocco, a settlement in northeastern Morocco *Annuals (band), ...

herb that produces one to many stems with erect, stemlike

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 ...

s 10 to 30 centimeters tall. The leaves are divided into narrow lobes which are sometimes subdivided, and most of the leaves are located at the base of the plant. The many

inflorescences 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 on ...

bear solitary

flower heads A pseudanthium (Greek for "false flower"; ) is an inflorescence that resembles a flower. The word is sometimes used for other structures that are neither a true flower nor a true inflorescence. Examples of pseudanthia include flower heads, compos ...

, each with a bulbous involucre of rough

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 ...

. The

flower head A pseudanthium (Greek for "false flower"; ) is an inflorescence that resembles a flower. The word is sometimes used for other structures that are neither a true flower nor a true inflorescence. Examples of pseudanthia include flower heads, compos ...

has a center of many yellow

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 we ...

s and a fringe of five to ten

ray florets 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 we ...

up to 2.5 centimeters (1 inch) long. The fruit is a small

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 op ...

. The fruit of the

ray 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 ...

is rough and bumpy and lacks a pappus; that of the

is more slender, shiny, edged with hairs, and tipped with a pappus of scales.Flora of North America, ''Coreopsis bigelovii'' (A. Gray) Voss
/ref> File:Leptosyne_bigelovii_7749.JPG, Each flower head consists of many yellow flowers and five to ten ray flowers. File:Leptosyne_bigelovii_7753.JPG, Leaves are divided into narrow lobes, sometimes subdivided. ''Coreopsis bigelovii'' may be distinguished from '' Coreopsis calliopsidea'' by its linear outer phyllaries. '' Coreopsis calliopsidea'' has triangular to ovate outer phyllaries. The outer phyllaries of '' Coreopsis californica'' are narrowly lanceolate and have yellow or red hairs at their base.

Uses

This plant was eaten as a raw or cooked green vegetable by the native

Kawaiisu The Kawaiisu (pronounced: ″ka-wai-ah-soo″) are a Native Californian ethnic group in the United States who live in the Tehachapi Valley and to the north across the Tehachapi Pass in the southern Sierra Nevada, toward Lake Isabella and Walker ...

and

Tübatulabal people The Tübatulabal are an indigenous people of Kern River Valley in the Sierra Nevada range of California. They may have been the first people to make this area their permanent home. Today many of them are enrolled in the Tule River Indian Tribe. ...

s of California.University of Michigan @ Dearborn, Native American Ethnobotany
/ref>

References

External links

*
''Coreopsis bigelovii'' — Calphotos Photo gallery, University of California
bigelovii Endemic flora of California Flora of the California desert regions Plants described in 1857 Flora of the Sierra Nevada (United States) Edible plants Flora without expected TNC conservation status Taxa named by Andreas Voss Taxa named by Asa Gray {{Coreopsideae-stub