26 WILD MEDICINAL PLANTS OF THE UNITED STATES. 



Delphinium consolida — Continued. 



enous tall larkspur, Delphinium urceolatum J acq. (D. exaliatum Ait. ) , is used 

 for similar purposes. This is found in woods from Pennsylvania to Minnesota, 

 south to Alabama and Nebraska. 

 Parts used. — Herb and seeds (nonofficial) . 



Delphinium exaltatum Ait. See under Delphinium consolida. 



Delphinium urceolatum Jacq. See under Delphinium consolida. 



Devil' s-bit. See Lacinaria scariosa. 



Devil' s-shoestring. See Cracca virginiana. * 



Dewberry. See Rubus procumbens. 



Dewberry, one-flowered. See Rubus villosus. 



Dewberry, southern.' See Rubus tririalis. 



Dicentra canadensis Walp. Same as Bikukulla canadensis. 



Digitalis. See Digitalis purpurea. 



Digitalis purpurea L. * Figwort family (Scrophulariaceae). 



Digitalis; foxglove; fairy-fingers; thimbles; lady's-glove. 



Very handsome biennial plant, 3 to 4 feet high; introduced from Europe as a 

 garden plant, and now escaped from cultivation in parts of Oregon, Washing- 

 ton, and West Virginia. 

 Parts used. — Leaves from plants of second year's growth, gathered at commence- 

 ment of flowering (official) . 



Dioscorea villosa L. Yam family (Dioscoreaceae). 



Wild yam; colic-root; rheumatism-root. 



Slender, herbaceous, native vine, growing in moist thickets from Rhode Island 

 to Minnesota, south to Florida and Texas; more common in central and south- 

 ern parts of the United States. 



Part used. — Rhizome (nonofficial). 

 Diospyros virginiana L. Ebony family (Diospyraceae). 



Persimmon. 



Indigenous tree, 15 to 50 feet in height; in fields and woods, Rhode Island to 

 Kansas, Florida, and Texas. 



Parts used. — Bark and unripe fruit (nonofficial). 

 Dirca palustris L. Mezereon family (Daphnaceae). 



Leatherwood; moosewood; American mezereon ; wickopy; rope-bark. 



A native shrub, occurring in woods and thickets, New Brunswick to Florida, 

 west to Missouri and Minnesota; most common in the Northern and Eastern 

 States. 



Part used. — Bark (nonofficial). 

 Ditch-stonecrop. See Penthorum sedoides. 

 Dittany, American. See Cunila origanoides. 

 Dock, bitter. See Rumex obtusifolius. 

 Dock, blunt-leaved. See Rumex obtusifolius. 

 Dock, broad-leaved. See Rumex obtusifolius. 

 Dock, curled. See Rumex crispus. 

 Dock, narrow. See Rumex crispus. 

 Dock, sour. See Rumex crispus. 

 Dock, spatter-. See Nymphaea advena. 

 Dock, velvet. See Verbascum thapsus. 

 Dock, yellow. See Rumex crispus. 

 Dogbane, spreading. See Apocynum androsaemifolium. 

 Dogberry. See Sorbus americana. 



