i 3 6 



Eriogonum flavum, Nutt. Yellow Eriogonum. 

 In the Black Hills. 



Rumex acetosella, L. Sheep Sorrel. 



A European weed introduced into pastures and timber 

 claims, etc., in the Sioux valley and in the Black Hills. 



Rumex venosus, Pursh. Veined Dock. 



From the bluffs of the Missouri river westward, in- 

 cluding the Black Hills. 



Rumex altissimus, Wood. Peach-leaved Dock. 



Common along streams and in wet ground from the 

 Missouri valley eastward. 



Rumex salicifolius, Weinm. Pale Dock. 



In low ground near lakes and streams throughout the 

 state. 



Rumex Britaimica, L,. Great-water Dock. 

 In the Minnesota and Sioux valleys. 



Rumex occicleutalis, S. Wats. Western Dock. 



On the plains west of the Missouri river, and in the 

 Black Hills. 



Rumex crispus, L. Curled Dock. 



Sparingly introduced into the state from the Missouri 

 river eastward, and in the Black Hills. 



Rumex persicarioides, L. Golden Dock. 



Abundant on damp, shady shores from the Missouri 

 valley eastward. 



Polygoimm viviparum, L. Alpine Bistort. 

 In damp, mossy places in the Black Hills. 



Polygonum amphibiiim, L. Water persicaria. 



In shallow water in the Minnesota, the Sioux and the 

 James valleys. 



Polygouum Hartwrightii, Gray. Hartwright's Persi- 

 caria. 



In the Sioux valley; rare. 



