38~] FLORA OF BOULDER, COLORADO 239 



Plains and mesas about Boulder and Marshall, 5100-6000 ft. 

 (Daniels, 435). 

 Nebraska to Washington ; Texas to California. 



1090. E. flagellaris Gray [E. stolonifer Greene]. Stolon- 



IFEROUS FLEABANE. 



Abundant on the plains, 5100-6000 ft. (Daniels, 3). 

 South Dakota to Wyoming; New Mexico to Utah. 



448i/ 2 - WYOMINGIA A. Nels. Mountain daisy. 



1091. W. cana (Gray). A. Nels. [Erigcron canus Gray]. 

 Hoary mountain daisy. 



Sunset Canon (Rydberg). 



South Dakota to Wyoming; Nebraska to New Mexico. 



449. LEPTILON Raf. Horseweed. 



1092. L. Canadense (L.) Britton [Erigcron Canadensis L.]. 

 Common horseweed. 



Fields and waste places, common, 5100-8000 ft. (Daniels, 



585)- 



North America, thence spreading throughout the world. 



1092a. L. Canadense pusillum (Nutt.) Daniels. Nov. comb. 

 [Erigcron pusillus Nutt.]. Dwarf horseweed. 

 The common form of the foothills, Vir 1 dm. high, and but 

 few-flowered, 6000-8000 ft. (Daniels, 694). 



450. ANTENNAKIA Gaertn. Everlasting. Cat's- 



foot. 



1093. A. media Greene. Medium cat's-foot. 



Arapahoe Peak above timberline, 11000-12000 ft. (Daniels, 

 1005). 

 Montana to British Columbia; Colorado to California. 



1094. A. umbrinella Rydb. Umber cat's-foot. 



Arapahoe Peak above timberline, 11000-12000 ft. (Daniels, 



932). 



Montana and Idaho to Colorado. 



1095. A. concinna E. Nels. 



