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Eriogoiiuiu fliiviiiii, Nutt. Yellow Eriogonuin. 

 In the Black Hills. 



Runiex acetosella, L. Sheep Sorrel. 



A European weed introduced into pastures and timber 

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



Riiiuex venosus, Pursh. Veined Dock. 



From the bluffs of the Missouri river westward, in- 

 cluding the Black Hills. 



Rviinex altissinius, Wood. Peach-leaved Dock. 



Common along streams and in wet ground from the > 

 Missouri valley eastward. 



Riiinex salicifolius, Weinm. Pale Dock. 



In low ground near lakes and streams throughout the 

 state. 



Rumex Britamiiea, L. Great-water Dock. 

 In the Minnesota and Sioux valleys. 



Runiex oceideiitalis, S. Wats. Western Dock. 



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

 Black Hills. 



Runiex crispus, L. Curled Dock. 



Sparingly introduced into the state from the Missouri 

 river eastward, and in the Black Hills. 



Runiex persicarioides, L. Golden Dock. 



Abundant on damp, shady shores from the Missouri 

 valley eastward. 



Polygonum viviparuni, L. Alpine Bistort. 

 In damp, mossy places in the Black Hills. 



Polygonum ainpliibium, L. Water persicaria. 



In shallow water in the Minnesota, the Sioux and the 

 James valleys. 



Polygonum llartwriglitii, Gray. Hartwright's Persi- 

 caria. 



In the Sioux valley; rare. 



