12 WILD MEDICINAL PLANTS OF THE UNITED STATES. . 



,jf Arctium lappa L. Aster family (Asteraceae). 



Synonym. — Lappa major Gaertn. 



Lappa; burdock; cockle-button; beggars' -buttons; bardane. 



' Coarse, biennial weed, 4 to 9 feet high, introduced from the Old World, and 



occurring along roadsides and in fields and waste places in the Eastern and 

 Central States. , - 



Vwte used. — Root of this or of other species of Arctium collected from plants of 

 first year's growth (official). The fresh leaves and the seeds are also used 



(nonofficial)* 



Arctostaphylos glauca Lindl. Heath family (Ericaceae). 



Manzanita. 



A shrub-like tree, 9 to 25 feet high, growing in California, in dry, rocky dis- 

 tricts on the western slopes of the Sierras. 



Pari used. — Leaves ( nonofficial ). 



Arctostaphylos uva-ursi (L. ) Spreng. Heath family (Ericaceae). 



Tva-ursi; bearberry; upland-cranberry. 



Low, evergreen perennial, with trailing stems, native in rocky or dry, sandy 

 soils from the Middle Atlantic States north to Labrador, westward to Califor- 

 nia and Alaska. 



Part used. — Leaves (official). 



^y Arisaema triphyllum (L.) Torr. Arum family (Araceae). 



Synonym. — Arum triphyllum L. 



Indian turnip; wild turnip; wake-robin; Jack-in-the-pulpit. 



Native, perennial herb, 10 inches to 3 feet high, found in moist woods from 

 Canada to Florida, west to Kansas and Minnesota. 



,/ 



Pari used. — Partially dried corm (nonofficial). 



/ 





' Aristolochia reticulata Nutt. Birthwort family (Aristolochiaceae). 



Serpen taria; Texas serpen taria; Texas snakeroot; Red River snakeroot. 



Perennial herb, about \\ feet in height, native in the Southwestern States, occur- 

 ring on river banks from Arkansas to Louisiana. 



Parts used. — Rhizome and roots (official). 



Aristolochia serpentaria L. Birthwort family (Aristolochiaceae). 



Serpentaria; Virginia serpentaria; Virginia snakeroot. 



Native, perennial herb, 10 inches to :> feet high, found in rich woods from Con- 

 necticut to Michigan and southward. 



Parts used. — Rhizome and roots (official). 



Arrowwood. See Viburnum dentatum. 



Arrowwood, Indian. See Euonymus atropurjnirens. 



Artemisia abrotanum L. Aster family (Asteraceae). 



Southernwood. 



Shrubby, perennial herb, about 2 to 4 feet in height, occurring in waste places 

 from Massachusetts to Nebraska. Adventive from Europe. 



Part used. — Herb (nonofficial). 



Artemisia absinthium L. Aster family (Asteraceae). 



Absinthium; wormwood; absinth. 



Shrubby, perennial herb, 2 to 3 feet high, naturalized from Europe, and occur- 

 ring in waste places and along roadsides from Newfoundland to New York and 

 westward. 



Parts used. — Leaves and tops (official in U. S. P. 1890). 



Artemisia vulgaris L. Aster family | Asteraceae ) . 



Common mug wort. 



Perennial herb, 1 to 3i feet high, naturalized from Europe; found in waste 

 places, Nova Scotia to the Middle States and westward to .Michigan. 



Part sed. — Herb (nonofficial). 



