''Crepis biennis'' is a

Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...

an species of flowering plant in the 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 w ...

with the common name rough hawksbeard. It is native to

and

Asia Minor Anatolia, tr, Anadolu Yarımadası), and the Anatolian plateau, also known as Asia Minor, is a large peninsula in Western Asia and the westernmost protrusion of the Asian continent. It constitutes the major part of modern-day Turkey. The re ...

, as well as being sparingly naturalized in scattered locations in the northeastern

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

and on the island of

Newfoundland Newfoundland and Labrador (; french: Terre-Neuve-et-Labrador; frequently abbreviated as NL) is the easternmost province of Canada, in the country's Atlantic region. The province comprises the island of Newfoundland and the continental region ...

in eastern

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

.Groot streepzaad, Wilde planten in Nederland en Belgie
in Dutch with photos and distribution map ''Crepis biennis'' is a

perennial A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wide ...

herb up to 120 cm (48 inches) tall. One plant can produce as many as 14 small

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 up to 100 yellow ray florets but no

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.Flora North America, Rough hawksbeard, ''Crepis biennis'' Linnaeus, Sp. Pl. 2: 807. 1753.
/ref>

References

External links

Go Botany, New England Wildflower Society: ''Crepis biennis''Flora of Northern Ireland
— ''with photos''. *�

— '' with photos''. * ttp://www.naturfotograf.com/UV_CREP_BIE.html Ultraviolet Flowers of Bjørn Rørslett— ''photos with visible light and with ultraviolet light''.
Tropicos.org: photo of herbarium specimen at Missouri Botanical Garden
biennis Flora of Europe Flora of Western Asia Flora of the Northeastern United States Flora of Newfoundland Plants described in 1753 Taxa named by Carl Linnaeus Flora without expected TNC conservation status {{Cichorieae-stub