WEEDS OF MONTANA. 39 



-46. ECHIXOSPERMUM DEFLEXUM AMERICANUM, Gray. 



Beggar Tick. 



A slender annual one or two feet high, widely branching above 

 and with small blue flowers and slender racemes of reflexed burs. 

 At Deer Lodge and Helena (Rydberg), Box Elder Creek, on the Ft. 

 Peck Reservation, Arlee, Plains and abundant and troublesome 

 in the streets, highways and waste plaees about Kalis pell, 

 where it is rapidly spreading into the country adjacent. It 

 threatens to become a bad pest throughout the state. Certainly 

 an introduced species in this region and doubtfully native in 

 America. 



47. ECHXOSPERMUM REDOWSKII, Lehm. 

 Tickseed; Beggar Ticks. 

 A native annual resembling the preceding, but is smaller and 

 has fewer erect fruit; common in loose soil about gopher hills, ant 

 hills and prairie dog towns. A common weed in waste places 

 throughout the Yellowstone region and in many places east of the 

 Divide, but more rare westward. Occurs here as the varieties 

 occidentale , Wats, and cupulatum, Gray, the latter much more 

 rare. 



48. ELLISIA NYCTELEA, L. 



A small, diffusely branched, spreading annual with deeply 

 lobed leaves and inconspicuous flowers. Not infrequent in low 

 grain fields and waste places. Rarely abundant enough to be 

 troublesome. Doubtfully native here. 



49. EPILOBIUM ANGUSTIFOLIUM, L. Ironweed; Fireweed. 



A tall, slender plant, about three feet high with a terminal 

 raceme of large purple flowers, blooming about the first of August. 

 Common in the foothills and mountains and the la^ge perennial 

 rootstock is often difficult to kill out in new ground. 



50. EPILOBIUM PANICULATUM, Nntt. Cotton Weed. 

 A tall and very slender, smooth, widely branching annual with 

 inconspicuous leaves and small red flowers, spreading eastward 

 from the Pacific along the railways and principal lines of travel. 

 Common along streets, highways and waste places in the western 

 part of the state; the cottony seeds are distributed by the winds. 



