OF THE UPPER MISSOURI. 197 
Lepachys columnaris, Torr. and Gray. Common throughout the Missouri country, 
but most abundant from Council bluffs to Niobrara river, on the rich broad 
“bottom prairies. In flower, July 8th. Rays usually yellow, sometimes of a 
deep purple velvet. 
Lepachys pinnata, Torr. and Gray. Vermilion prairie. Rare. 
Rudbeckia hirta, Linn. Council bluffs. 
Helianthus petiolaris, Nutt. Common from Sargent’s bluffs to Fort Union. 
Helianthus rigidus, Defs. From Bellevue to Yellowstone. 
Helianthus lenticularis, Dougl. Fort Pierre. Abundant in Indian cornfields at Fort 
Mandan. 
Helianthus Maximilian, Schrad. Fort Pierre to Fort Union. 
Helianthus hirsutus, Raf. Big Sioux river. 
Coreopsis palmata, Nutt. Bellevue, N. T. 
Bidens bipinnata, Linn. Bellevue, N. T. 
Bidens chrysanthemoides, Michx. Yellowstone river. 
Balsamorrhiza sagittata, Nutt. Black hills. 
Linosyris viscidiflora, Torr. and Gray. Fort Union. 
Linosyris graveolens, Torr. & Gray. Sterile hills on the Yellowstone ; very common ; 
also Bad Lands; the larger glabrous, and the smaller a stinted canescent form. 
Thelesperma filifolia, Gray. Platte valley, July 30th. 
Thelesperma gracile, Gray. Sand hills, July 24th. 
Dysodia chrysanthemoides, Michx. On the Yellowstone. 
Gaillardia aristata, Pursh. Fort Union. 
Hymenopappus tenuifolius, Pursh. Big Sioux to Fort Union and Bad Lands. 
Bahia appositifolia, Nutt. Common on roadsides and in prairie dog villages, from 
Fort Pierre to Bad Lands and to the Yellowstone. 
Actinella acaulis, Nutt. On high sterile hills, Bad Lands, and Yellowstone. 
Actinella Richardsoni, Nutt. Fort Union. 
Actinella lanata, Nutt. Niobrara river. 
Helenium autumnale, Linn. Kansas and Southern Nebraska. 
Anthemis arvensis, Linn. Naturalized to Fort Leavenworth. 
Achillea millefolium, Linn. Found all over the prairie country of the West; must 
be indigenous west of the Mississippi. 
Antennaria plantaginea, R. Br. Upper Missouri and Black hills. 
Antennaria dioica, Gaertn. Fort Pierre to Yellowstone. 
Antennaria margaritacea, R. Br. Laramie mountains. 
Antennaria dimorpha, Nutt. Bad Lands. 
