60 WILD MEDICmAL PLANTS OF THE UNITED STATES. 



Rubus procumbens Muhl. Rose family (Rosaceae). 



Synonym. — Hubus canadensis T. & G., not L. 



Kubtis; low running blackberry; dewberry. 



Shrubby, trailing plant, found in dry soil from Newfoundland to Lake Superior, 

 south to Virginia and the Indian Territory. 



Part used.— Bar^ of root (official in U. S. P. 1890). 

 Rubus strigosus Michx. Rose family (Rosaceae). 



Wild red raspberry. 



Shrubby plant, found in dry or rocky situations from Canada to North Carolina 

 and New Mexico. 



Parts used. — Fruit and leaves (nonofficial) . 

 Rubus trivialis Michx. Rose family (Rosaceae). 



Kubus; southern dewberry; low-l)Ush blackberry. 



Shrubby, procumbent plant, found in sandy soils, Virginia to Florida, west to 

 Missouri and Texas. 



Part used.— Bark of root (official in U. S. P. 1890) . 

 Rubus villosus A. Gray, not Ait. Same as Rubus nigrobaccus. 

 Rubus villosus Ait. ~ Rose family (Rosaceae). 



Rubus; one-flowered dewberry. 



Trailing plant, with slender branches, growing in sandy or dry soil near the 

 coast from Maine to South Carolina. 



Part used. — Bark of rhizome (official) 

 Rudbeckia laciniata L. Aster family ( Asteraceae) . 



Thimbleweed; tall coneflower. 



Much-branched, native perennial, 3 to 12 feet high; in moist thickets, Canada 

 and Montana, south to Florida and New Mexico. 



Part used. — Herb (nonofficial). 

 Rum-cherry. See Prnnus serotina. 

 Rumex. See Rumex crispus. 

 Rumex acetosella L. Buckwheat family (Polygonaceae) . 



Sheep-sorrel; field-sorrel; sour-grass; common sorrel. 



Annual or perennial herb, abundant 'in dry fields, pastures, and waste ground 

 throughout the United States. 



Part used. — Leaves (nonofficial). 

 Rumex crispus L. Buckwheat family (Polyg-onaceae). 



Rumex; yellow dock; curled dock; narrow dock; sttur dock. 



A weed introduced from Europe, and common in cultivated and waste ground 

 throughout the United States. Perennial plant, 2 to 4 feet high. 



Part used.— Root of this and some other species of Rumex (official in U. S. P. 

 1890). 

 Rumex obtusifolius L. Buckwheat family (Polygonaceae). 



Bitter dock; blunt-leaved dock; broad-leaved dock. 



A perennial weed, 2 to 4 feet high, naturalized from Europe, and found in waste 

 places from New England to Florida, west to Texas and Oregon. 



Part used.— Uoot, collected with that of Rumex crispus. 



Sabal. See Serevoa scrrulata. 



Sabbatia annularis (L.) Pursh. Gentian family (Gentianaceae). 



American centaury; rose-pink; bitterbloom; bitter clover. 



Native, biennial plant, 1 to 2 feet high, growing in damp, rich soil, in meadow^s 

 and among high grass, from New York to Michigan, south to Florida and 

 the Indian Territory. 

 Part used. — Herb (nonofficial). 



