237] FLORA OF BOULDER, COLORADO 89 



240. J. Drummondii Mey. DRUMMOND'S RUSH. 



Above timberline, Arapahoe Peak, 11000-13000 ft. (Dan- 

 iels, 922). 



MONTANA to ALASKA; COLORADO to CALIFORNIA. 



241. J. interior Wiegand. INLAND RUSH. 



Common in swales and meadows on the plains, mesas, 

 and foothills, and following the main streams some distance 

 into the mountains, 5100-6500 ft. (Daniels, 152). 



ILLINOIS to WYOMING; MISSOURI to COLORADO. ' 



242. J. Arizonicus Wiegand. ARIZONA RUSH. 



Dry beds of torrents, mesas at foot of the Flat-irons 

 5700-6000 ft. (Daniels, 964). 

 TEXAS to COLORADO and ARIZONA. 



243. J. confusus Coville. CONFUSED RUSH. 



Swales along the railroad between Boulder and Marshall, 

 5400 ft. (Daniels, 421). 

 MONTANA to WASHINGTON and COLORADO. 



244. J. Dudleyi Wiegand. DUDLEY'S RUSH. 



Swales, meadows, and mountain canons, 5100-8600 ft. 

 (Daniels, 965). Replaces /. interior Wiegand in the moun- 

 tain region. 



MAINE to WASHINGTON; NEW YORK to MEXICO. 



245. J. bufonius L. TOAD RUSH. 



Wet sandy soil throughout except at the higher eleva- 

 tions, 5100-9000 ft. (Daniels, 251). 

 Cosmopolitan. 



246. J. marginatus Rostk. GRASS-LEAVED RUSH. 

 Irrigation ditches along the Arapahoe Road, 5300 ft. 



(Daniels, 740). Not in Rydberg's Flora. 

 MAINE to ONTARIO; FLORIDA to COLORADO. 



247. J. longistylis Torr. LONG-STYLED RUSH. 



Common in swales, about ditches and ponds, and in wet 

 meadows throughout, 5100-10000 ft. (Daniels, 249). 

 ALBERTA to IDAHO; NEBRASKA to MEXICO and CALIFORNIA. 



