LIST OF THE PLANTS COLLECTED 63 



419 Solidago rigid L. Hard-leaved Goldenrod. 



Common on the plains throughout, especially on tables of 



buttes. 

 400 Solidago serotiua Ait. Late Goldenrod. 



Common on the plains especially in draws. 



COMPOSITAE, tribe Inuleae 



[Antennaria arida E. Nels. 

 Reported by Fromme.] 



421 Antennaria aprica Greene. Pearly Everlasting, Jndian To- 



bacco. 

 Frequent on the buttes and plain. 



COMPOSITAE, tribe Heliantheae 



422 Ambrosia artemisiaefolia L. 

 Little Missouri Valley, infrequent. 



423 Ambrosia psilostachya DC. 



Along rivers especially on sandy soil where it is one of the 

 most prominent plants. 



424 Ambrosia trifida integrifolia T. & G. 

 Along shaded brooks, West Short Pines. 



425 Ambrosia trifida L. 



Common along roads, on floodplains and along brooks. 



[Bidens frondosa L. 



Reported by Fromme.] 

 425 Bidens glancescens Greene. Beggar's Ticks, Bur Marigold. 



Plentiful along streams throughout. 

 *426 Bidens vulgata Greene. 



Along brooks, not uncommon. 



427 Braitneria angustifolia (DC.) Heller. Niggerhead "Black- 



eyed Susan." 



On the steppe, very abundant in the areas underlain with 

 loam. 



428 Coreopsis tinctoria Nutt. Tickseed, "Marsh Flax." 



Rare in waterholes and undrained spots in fields near Lemmon, 

 Perkins County. 



Franseria acaiit/iiarpa (Hook.) Coville. 



Abundant on sandy soil along streams, locally common on 

 sandy portions of the plains. 



