198 

 CICHORIACE^E. Chicory Family. 



Tragopogon pratensis, L. Meadow Salsify. 



Naturalized in the Minnesota and Sioux valleys. 



Taraxacum Taraxacum, (L.) Karst Dandelion. 



In lawns and and waste fields from the James valley 

 eastward and in the Black Hills. 



Soiichus asper, (L.) All. Spiny Sow Thistle. 



In waste places from the Minnesota valley eastward 

 and in the Black Hills. 



L<actuca Scariola, L. Prickly Lettuce. 



In fields and waste places from the Missouri valley 

 eastward ; not abundant. 



Lactuca Ludoviciana, (Nutt.) DC. Western Lettuce. 



Common on shady banks from the Missouri valley 

 eastward and in the Black Hills. 



Lactuca Canadensis, L. Tall Lettuce. 



In most thickets in the Sioux and James valleys. 



Lactuca pulchella, (Pursh.) DC. Large-flowered Blue 

 Lettuce. 



In low places from the Missouri valley eastward and 

 in the Black Hills. 



Lactuca spicata, (Lam.) Hitch. Tall Blue Lettuce. 

 Lactuca leucophcea, Gray. 



In moist thickets in the Minnesota and Sioux valleys. 



Lygodesmia juncea, (Pursh.) D. Don. Rush-like Lygo- 

 desmia. 



Common on breaking from the Missouri valley east- 

 ward and on dry plains from the Missouri valley west- 

 ward. 



Agoseris glauca, (Pursh.) Greene. Large-flowered Agos- 

 eris. 



Troximon glaucum, Pursh. 

 On prairies and plains throughout the state. 



