VASCULAR PLANTS OP OHIO -■!•'' 



::020. Cirsium laneeolatnm (L.) Hill. Spear Thistle. Ilalhcr general. 

 Prom Europe. 



2021. Cirsium altissiinuin (L.) Spreng. Tall Thistle. Rather general. 



2022. Cirsium discolor (Muhl.) Spreug. Field Thistle. We.stern Ohio, 



as far east as Erie, Huron, Fairfield, and Clermont Counties. 



2023. Cirsium virginianum (L.) Mx. Virginia Thistle. Madison 



County. 



2025. Cirsium muticum Mx. Swamp Thistle. General. 



2026. Cirsium arvense (L.) Scop. Canada Thistle. General. From 



Europe. 



2027. Onopordon aeanthium L. Scotch Thistle. Hamilton, Wayne. 



Prom Europe. 



2028. Centaurea scabiosa L. Scabious Star-thistle. Lake County. 



Prom Europe. 



2029. Centaurea jacea L. Brown Star-thistle. Richland County. 



Prom Europe. 



2030. Centaurea cyanus L. Bachelor 's-Button. Montgomery, Frank- 



lin, Sandusky. Escaped from gardens. 



Cichoriaceae. Chicory Family. 



2031. Cichorium intybus L. Chicory. Rather general. Introduced 



from Europe. 



2032. Cynthia virginica (L.) Don. Virginia Cynthia. General. 



2033. Lapsana communis L. Nipplewort. Franklin, Lake. Prom 



Europe. 



2034. Arnoseris minima (L.) Dum. Lamb Succory. Lake County. 



Prom Europe. 



2035. Hypochaeris radieata L. Long-rooted Cat's-ear. Lake, Ashta- 



bula. From Europe. 



2036. Apargia nudicaulis (L.) Britt. Rough Hawkbit. Lake County. 



From Europe. 



2037. Tragopogon pratensis L. Yellow Goat's-beard. Lake, Erie, Ful- 



ton, Auglaize, Franklin, Miami. From Europe. 



2038. Tragopogon porrifolius L. Salsify. Rather general ; no speci- 



mens from the southeastern third of the state. From Europe. 



2039. Sonchus arvensis L. Field Sow-thistle. Lake, Franklin. From 



Europe. 

 2040^ Sonchus oleraeeus L. Common Sow-thistle. General. Nat- 

 uralized from Europe. 



