88 BOTANY OF L,A SALLE COUNTY. 



B. E. altissimum. Leaves lanceolate tapering to both 



ends upper alternate; W., 3 to 7 ft. Dry places. 

 E. perfoliatum. Hairy leaves united at base; W. 



Damp lands. A powerful medicine; emetic and 



purg-ative. 

 E}. ag'eratoides. Smooth, branching 1 ; leaves broad, 



ovate, acuminate, toothed, thin; W. in larg-e 



carymbs. Showy and handsome. 2 to 3 ft. 



Woods. 



KHUNIA. P. Leaves alternate, toothed or entire. 

 K. eupatorioidis; Leaves long 1 , narrow, flowers Y. 



Aug 1 . Dry places. 

 LTATRIS. Button Snake Root. Blazing Star. Heads 



nearly sessile, in long 1 spikes. Splendid plants 



with rigid, leafy stems. P. flowers. Ju. Aug-. 

 L. squarrosa. Leaves stiff, long- and very narrow; 



scale tips leaf}^, spreading-; heads few; 1 to 2 ft. 

 L. cylindra cea. Usually smooth; leaves linear; 



heads few; scales short, rounded, mueronate; 6 



to 18 in. Dry places. 

 L. scariosa. Stout, 2 to 5 ft., woolly; leaves 



roug-h, upper leaves lanceolate, lowest long- and 



petiolate; heads larg-e; scale's tips dry or colored. 

 L. pycnosta chya. Stout 3 to 5 ft., very leafy; 



leaves narrow; heads many in a thick spike, 



small; scale tips recurved, colored. 

 L. spicata. Smooth, leafy, 2 to 5 ft.; scale tips 



obtuse, close. Moist places. 

 GRINDELIA. P. Smooth with sessile or clasping" 



stiff leaves. 

 G. squarrosa. Leaves spatulate to linear oblong-; 



Y. Found by Prof. Boltwood in 1882 by the 



C., R. I. & P. R. R. 1 mile W. of Ottawa. 

 SOLIDAGO. P. Golden Rod. Stems slender, stem 



leaves nearly sessile; flowers usually Y. in larg-e 



