''Crepis runcinata'' 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 flowering plant in the family Asteraceae known by the common name fiddleleaf hawksbeard. It is native to western and central Canada (from British Columbia to Manitoba), the western and central United States (from the Pacific as far east as Minnesota, Iowa, western Kansas and northwestern Texas) and northern Mexico (

Chihuahua Chihuahua may refer to: Places *Chihuahua (state), a Mexican state **Chihuahua (dog), a breed of dog named after the state **Chihuahua cheese, a type of cheese originating in the state **Chihuahua City, the capital city of the state **Chihuahua Mun ...

). ''Crepis runcinata'' grows in many types of habitats. It is a variable species with many

subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...

. In general it is a perennial herb growing an erect, hairless, mostly leafless, unbranching stem up to about 80 centimeters (32 inches) tall from a taproot. The hairless leaves are arranged about the base of the plant in a rosette, each somewhat narrowly oval with many toothlike triangular lobes or sometimes lacking lobes. The inflorescence produces

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 ...

with hairy, glandular phyllaries and many yellow ray florets but no disc florets. 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 ope ...

with a pappus.Flora of North America, ''Crepis runcinata'' (E. James) Torrey & A. Gray, Fl. N. Amer. 2: 487. 1843.
/ref>Wooton, Elmer Ottis & Paul Carpenter Standley. 1913. Contributions from the United States National Herbarium 16(4): 176
as ''Crepis neomexicana'' ;Subspecies *''Crepis runcinata'' subsp. ''andersonii'' (A.Gray) Babc. & Stebbins – California, Nevada *''Crepis runcinata'' subsp. ''barberi'' (Greenm.) Babc. & Stebbins – Arizona, Nevada, New Mexico,

. *''Crepis runcinata'' subsp. ''glauca'' (Nutt.) Babc. & Stebbins – Alberta, Manitoba, Saskatchewan; Arizona, Colorado, Idaho, Montana, North Dakota, Nevada, New Mexico, North Dakota, South Dakota, Texas, Utah, Wyoming *''Crepis runcinata'' subsp. ''hallii'' Babc. & Stebbins – California, Nevada *''Crepis runcinata'' subsp. ''hispidulosa'' (Howell ex Howell) Babc. & Stebbins – Alberta, Saskatchewan; Colorado, Idaho, Montana, North Dakota, Oregon, Utah, Washington, Wyoming *''Crepis runcinata'' subsp. ''imbricata'' Babc. & Stebbins – Nevada, Oregon *''Crepis runcinata'' subsp. ''runcinata'' – Alberta, British Columbia, Manitoba, Saskatchewan; Colorado, Idaho, Minnesota, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oregon, South Dakota, Utah, Washington, Wyoming

References

External links

Jepson Manual TreatmentUnited States Department of Agriculture Plants ProfileCalphotos Photo gallery, University of California: ssp. ''hallii''
runcinata Flora of Western Canada Flora of the Northern United States Flora of the Northwestern United States Flora of the Southwestern United States Flora of California Flora of the Rocky Mountains Flora of the Sierra Nevada (United States) Plants described in 1823 Taxa named by Asa Gray Taxa named by John Torrey Flora without expected TNC conservation status {{Cichorieae-stub