Hieracium umbellatum

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Hieracium umbellatum (commonly called Hieracium canadense), the Canadian hawkweed, Canada hawkweed, narrowleaf hawkweed, or northern hawkweed, is a flowering plant in the family Asteraceae.

Hieracium umbellatum

Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Hieracium
Species:	H. umbellatum
Binomial name
*Hieracium umbellatum* L.

Global country-level distribution
Synonyms^[4]
Hieracium vulgatum Hieracium kalmii L. Hieracium umbellatum L. Hieracium scabriusculum Schwein. Hieracium acranthophorum Omang Hieracium columbianum Rydb. Hieracium devoldii Omang Hieracium x dutillyanum Lepage Hieracium eugenii Omang Hieracium fasciculatum Pursh Hieracium macrophyllum Pursh Hieracium manitobense Gand. Hieracium musartutense Omang Hieracium nepiocratum Omang Hieracium oxoacrum Gand. Hieracium prenanthoides Hook., non Vill. Hieracium rigorosum (Laest.) Almq. Hieracium sinense Vaniot Hieracium stiptocaule Omang^[1] Hieracium lactescens Rouy^[2] Hieracium dunale Hieracium hispidum Forssk. Hieracium monticola Jord. Hieracium pervagum Boreau^[3]

Distribution

It is native to most of the temperate parts of the northern hemisphere.^[5]

Range of Hieracium canadense throughout Asia
Range of Hieracium canadense throughout Europe
Range of Hieracium canadense throughout North America

Description

Its pointed leaves have toothed margins, where the teeth can appear almost hooked. The flowers of the plant are yellow.

Mature plant
Budding, flowering, and fruiting
Zygaena moth visiting the flower

Infraspecific synonyms

Male leafcutter bee on the flower

There are many named infraspecific taxa of Hieracium umbellatum:

Hieracium canadense Michx. forma lepagei Vict.
Hieracium canadense Michx. forma pilosius Lepage
Hieracium canadense Michx. forma rufescens Lepage
Hieracium canadense Michx. var. angustifolium Torr. & A.Gray p.p.
Hieracium canadense Michx. var. columbianum (Rydb.) H. St.John
Hieracium canadense Michx. var. divaricatum Lepage
Hieracium canadense Michx. var. fasciculatum (Pursh) Fernald
Hieracium canadense Michx. var. hirtirameum Fernald
Hieracium canadense Michx. var. kalmii (L.) Scoggan
Hieracium canadense Michx. var. latifolium Torr. & A.Gray
Hieracium canadense Michx. var. scabrum Schwein.
Hieracium canadense Michx. var. subintegrum Lepage
Hieracium kalmii L. var. canadense (Michx.) Reveal
Hieracium kalmii L. var. fasciculatum (Pursh) Lepage
Hieracium kalmii L. var. subintegrum (Lepage) Lepage
Hieracium scabriusculum Schwein. forma chrysostylum Lepage
Hieracium scabriusculum Schwein. forma phaeostylum Lepage
Hieracium scabriusculum Schwein. forma xanthostylum Lepage
Hieracium scabriusculum Schwein. var. columbianum (Rydb.) Lepage
Hieracium scabriusculum Schwein. var. perhirsutum Lepage
Hieracium scabriusculum Schwein. var. saximontanum Lepage
Hieracium scabriusculum Schwein. var. scabrum (Schwein.) Lepage
Hieracium subnudum L. var. canadense (Michx.)(Michx.) DC.
Hieracium sylvaticum Salisb., nom. illeg. hom., non (L.) L.
Hieracium umbellatum L. subsp. canadense (Michx.) Guppy
Hieracium umbellatum L. subsp. scabriusculum (Schwein.) Á. & D. Löve
Hieracium umbellatum L. var. canadense (Michx.) Breitung
Hieracium umbellatum L. var. commune Fr.
Hieracium umbellatum L. var. coronopifolium Bernh. ex Kom.
Hieracium umbellatum L. var. mongolicum Fr.
Hieracium umbellatum L. var. scabriusculum (Schwein.) Farw.^[1]
Hieracium laevigatum subsp. canadense (Michx.) Zahn
Hieracium umbellatum L. var. canadense (Michx.) Breitung^[6]
Hieracium canadense Michx. var. canadense
Hieracium canadense Michx. var. fasciculatum (Pursh) Fernald
Hieracium scabriusculum Schwein. var. columbianum (Rydb.) Lepage^[7]
Hieracium umbellatum subsp. monticola (Jord.) Nyman^[3]

References

^ ^a ^b Natural Resources Canada (2007-12-21). "Hieracium umbellatum L." Canada's Plant Hardiness Site. Government of Canada. Retrieved 2007-12-27.
^ Royal Botanic Garden Edinburgh. "Flora Europaea Hieracium umbellatum". Retrieved 2007-12-15.
^ ^a ^b Botanic Garden and Botanical Museum Berlin-Dahlem (June 5, 2007). "Details for: Hieracium umbellatum". The Euro+Med Plantbase. Botanic Garden and Botanical Museum Berlin-Dahlem. Retrieved 2007-12-21.
^ International Plant Names Index. "International Plant Names Index Search". Retrieved 2007-12-15.
^ "Hieracium umbellatum". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 2007-12-27.
^ Natural Resources Conservation Service (2007). "PLANTS Profile for Hieracium canadense Michx". The PLANTS Database. USDA, Baton Rouge, LA 70874-4490 USA. Retrieved 2007-12-18.
^ Wisconsin State Herbarium. "WI Vascular plants-Hieracium kalmii". Wisconsin Botanical Information System. Wisconsin State Herbarium. Retrieved 2007-12-21.

University of Michigan - Dearborn. "Native American Ethnobotany Hieracium canadense". Retrieved 2007-12-23.
Ohio Department of Natural Resources, Division of Natural Areas and Preserves (December 1983). "HIERACIUM CANADENSE". Retrieved 2007-12-27.
Wisconsin State Herbarium. "WI Vascular plants-Hieracium kalmii". Wisconsin Botanical Information System. Wisconsin State Herbarium. Retrieved 2007-12-21. ^{[dead link]}
Stonehill College. "CANADA HAWKWEED (Hieracium canadense)". SMALL PLANTS. Retrieved 2007-12-27. ^{[dead link]}
Laurentian Environmental Center (2005). "Hawkweed canada (Hieracium canadense)". Plant Key, Summer plants. Laurentian Environmental Center, Britt, Minnesota. Archived from the original on October 22, 2006. Retrieved 2007-12-27.
Andy Fyon. "Canada Hawkweed". Andy's Northern Ontario Wildflowers. Retrieved 2007-12-21.
Lady Bird Johnson Wildflower Center, University of Texas at Austin. "Hieracium canadense Michx". Native Plant Database. Retrieved 2007-12-21.

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