298 Carduaceae 



Stem usually stout, smooth, or 

 Lindleyanus sparingly hairy, 1-3 feet high, 

 T. & G. branched above. Leaves rather 



Lindley's thick, smooth or slightly hairy, 



Aster. 11 .1 



especially on the veins, the 



lower and basal ones heart-shaped at the 

 base, sharply serrate, ovate-acute or acumi- 

 nate, 2-4 inches long, with slender, naked 

 petioles ; upper leaves ovate-lanceolate or lan- 

 ceolate, more or less serrate or entire, sessile or 

 with margined petioles. Heads usually not 

 numerous, J of an inch or more high; in- 

 volucre broadly top-shaped; bracts linear- 

 lanceolate, acute, rather loosely imbricated, 

 smooth or nearly so, their tips green, rays 

 10-20, blue or violet, J an inch long; 

 pappus nearly white. 



In open places and along the rivers 

 throughout the region; flowering during 

 July and August. 



Aster cilio- Stems 1-2 feet high, round, 

 marginatus slightly striate and tinged with 

 Rydb. Te ^ sm ooth below, more or less 



hairy in lines above. Basal leaves smooth 



