Shai'kr : Vascular I-'idka m Ai i.i.chknn C'oiniv. 71 



CENTAUREA l,innii:us. 



* C. Cyanus Linni\;us. Corn-tlower. 



Harrison and Moon Townships ; escaped from t^ardens. 



AMBROSIACE^ Reichenbach. 



RAGWEED FAMILY. V-42. 



AMBROSIA IJnnixius. 



* A. trifida Einnreus. Great ragweed. 



* A. trifida integrifolia (Muhlenberg). Kntire-leaved great ragweed. 



* A. artemisiaefolia Linmuus. Ragweed. 



XANTHIUM Linnaeus. 



* X. strumarium Linnaeus. Burweed. 



CICHORIACE^ Reichenbach. 



CHICORY FAMILY. V-41. 



ADOPOGON Necker. 



KRIGIA Schrel)er. 



* A. Virginicum (Linngeus). Virginia goatsbeard. 

 K. amplexicaiilis NuttalL 



CICHORIUM Linnc^us. 



* C. Intybus Linnaius. Chicory. 



HIERACIUM Linnreus. 

 j H. Canadense Michaux. Canada hawkweed. 



* H. paniculatum Linnaeus. I'anicled hawkweed. 



* H. venosum Linnaeus. Rattlesnake-weed. 



