, known as Pulsatilla nuttalliana American pasqueflower, prairie pasqueflower, prairie crocus, cutleaf anemone, or simply pasqueflower, is a flowering plant native to much of North America, from the western side of Lake Michigan, to northern Canada in the Northwest Territories, south to New Mexico in the southwestern United States.    
Pasqueflower is the provincial flower of
Manitoba and the state flower of  South Dakota.
It was first
formally named in 1817 as . Anemone nuttalliana It is sometimes considered a  subspecies or variety of ( Pulsatilla patens Anemone patens). 
Mosyakin, S.L. (2016). "Nomenclatural notes on North American taxa of Anemonastrum and Pulsatilla (Ranunculaceae), with comments on the circumscription of Anemone and related genera" (PDF). Phytoneuron (79): 1–12. ISSN 2153-733X.
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". Pulsatilla nuttalliana (DC.) Spreng" Plants of the World Online. Royal Botanic Gardens, Kew . Retrieved . 26 April 2020
Brouillet L, Desmet P, Coursol F, Meades SJ, Favreau M, Anions M, Bélisle P, Gendreau C, Shorthouse D, and contributors (2010+). ". Pulsatilla nuttalliana Muhlenberg ex Willdenow" data.canadensys.net. Database of Vascular Plants of Canada (VASCAN) . Retrieved . 26 April 2020 CS1 maint: uses authors parameter ( link)
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". Pulsatilla patens (L.) Mill. ssp. multifida (Pritz.) Zamels" Natural Resources Conservation Service PLANTS Database. USDA . Retrieved . 1 April 2020
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Wilhelm, Gerould; Rericha, Laura (2017). Flora of the Chicago Region: A Floristic and Ecological Synthesis. Indiana Academy of Sciences.
"Map: . Anemone patens var. multifida" www.efloras.org . Retrieved . 26 April 2020
Government of Manitoba. "Symbols of Manitoba". Archived from the original on 2005-12-10 . Retrieved . 2011-04-10
Chapter 1 2005 South Dakota Legislative Manual The Mount Rushmore State
". Pulsatilla nuttalliana (DC.) Spreng" ipni.org. International Plant Names Index . Retrieved . 26 April 2020