202 



Liatris spicata, L. 



In low prairies in the Minnesota and Sioux valleys. 



Outierrezia Sarothrse, (Pursh.) Britt. & Rusby. Gutier- 

 rez ia. 

 Gutierrezia Euthamice, T. & G. 



On the dry plains from the Missouri valley west- 

 ward. 



Griiidelia squarrosa, (Pursh.) Dunal. Broad-leaved 

 Gum Plant. 



In dry soil throughout the state. It is becoming a 

 weed in waste places in the eastern part of the state. 



Ckrysopsis villosa, (Pursh.) Nutt. Hairy Golden Aster. 

 Common in dry soil from the Missouri valley east- 

 ward and in the Black Hills. Many of the western 

 forms are very close to C. hispida. 



Chrysothamnus Douglasii, (Gray.) Douglas's Rayless 

 Goldenrod. - 

 Bigelovia Douglasii, Gray. 



In dry alkaline soils from the Missouri valley west- 

 ward to the Black Hills. 



Eriocarpum grindelioides, Nutt. Rayless Eriocarpum. 

 In dry soils in the Black Hills and the surrounding 

 plains. 



Eriocarpum spinulosum, (Nutt.) Greene. Cut-leaved 

 Eriocarpum. 

 Aplopappus spinulosus. 



In dry soils throughout the state; but rare in the Min- 

 nesota and Sioux valleys, common westward. 



Solidago flexicaulis, L. Broad-leaved Goldenrod. 

 Solidago latifoiia, L. 



On shady banks in the Minnesota valley. 



Solidago erecta, Pursh. Slender Goldenrod. 

 On dry knolls in the Black Hills. 



