158 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. fBull. 



Rare. Alluvial or waste ground: Lyme (Graves), Sey- 

 mour (Harger). May — June. Adventive from Europe. 

 Sometimes cultivated for spring greens. 



Rumex Britannica L. 



Great Water Dock. Horse Dock. 



Occasional. Swamps, fresh and brackish marshes and 

 shallow water along streams. July — Aug. 



Rumex crispus L. (curled). 



Curled, Curly, Yellow or Narrow Dock. 



Common. Waste places, fields and meadows, especially 



in moist situations. June — ^July. Naturalized from Europe. 



A troublesome weed in grasslands and grain fields. The 



leaves are often used as a pot-herb. The root is of value in 



medicine, and is in popular use as a blood purifier. 



Rumex elongatus Guss. (lengthened). 



Fields and waste ground. Southington (Andrews), and 

 probably elsewhere, as the species has been confused with 

 Rumex crispus and is presumed to occur occasionally with it. 

 June — July. Adventive from Europe. 



Rumex mexicanus Meisn. 



Rumex salicifolius of Gray's Manual ed. 6, in part, not 



Weinm. 



Rare. Waterbury, in waste ground (B. B. Bristol, A. E. 

 Blewitt). July. Adventive or fugitive from the North or 

 West. 



Rumex altissimus Wood (tallest). 

 Tall, Pale or Peach-leaved Dock. 



Rare. Waste ground: Plainfield (J. L. Sheldon), New 

 London (Graves), Guilford (G. H. Bartlett), Farmington (A. 

 W. Driggs), Waterbury (J. M. Richardson), Naugatuck (B. 

 B. Bristol), Stratford (Mrs. R. H. Russell). July. In Con- 

 necticut probably adventive from the West. 



Rumex verticillatus L. (whorled). 

 Swamp Dock. 



Rare. Open low or swampy ground along the Connecticut 

 River: Lyme (Graves), Haddam and East Hartford (Weath- 



