Flora of Denver. 21 



162. Solidago rigida L. Stem stout, simple, heads in a 

 cyme, herbage scabrous and whole plant stiff. Perrin's meadow 

 in North Denver. Summer, fall. 



163. Solidago occidentals NUTT. Spreading, leafy, with 

 small clusters of fragrant flowers at the ends of the branches, 

 receptacle hairy or fringed. Growing near water. Fall. 



164. Townsendia sericea HOOK. Large pink flowers sessile 

 and surrounded by the leaves. Growing close to the ground 

 and inclined to form small mats. In early spring in North 

 Denver. 



165. Aster Fendleri GRAY. Tall, branching above, blue- 

 rayed flowers almost sessile on short branchlets, leaves clasp- 

 ing by an auriculate base. Along the Platte. Fall. 



166. Aster ericoides L. Diffusely branching, leaves linear, 

 rays white. Along the Platte. Fall. 



167. Aster multiflorus AIT. Branching from the base, 

 white radiate heads crowded on the branchlets. Common. Fall. 



168. Aster salicifolius AIT. Tall, leaves long and pointed, 

 purple-rayed flowers rather large in a panicle or thyrse. Along 

 the Platte. Fall. 



169 A^ster angustus T. & G. Numerous branches erect 

 along the stem, heads rayless, on. short stems, pappus soft and 

 snowy white. In wet places in North Denver and along the 

 Platte. 



170. Aster canescens PURSH. var. latifolius GRAY. Stems 

 a foot or two high. The common deep purple aster, glandular, 

 involucre with recurved tips. Fall. 



171. Aster tanacetifolius HBK. Stems low and spread- 

 ing, leaves pinnatifid, flowers large, rays purple. Spring to fall. 



