12 WILD MEDICINAL PLANTS OF THE UNITED STATES. 



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. 

 \irts 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. 

 Part used. — Leaves ( nonofficial ) . 

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



Uva-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). 

 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. 

 Part used. — Partially dried corm (nonofficial). 

 Aristolochia reticulata Nutt. Birthwort family (Aristolochiaceae). 



Serpentaria; Texas serpentaria; Texas snakeroot; Eed River snakeroot, 

 Perennial herb, about 1| 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 3 feet high, found in rich woods from Con- 

 necticut to Michigan and southward. 

 Parts used. — Rhizome and roots (official). 

 Arrowwood. See Viburnum dentatum. 

 Arrow wood, Indian. See Euonymus atropurpureus. 



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 IT. S. P. 1890). 

 Artemisia vulgaris L. Aster family (Asteraceae). 



Common mug wort. 

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



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

 Part used. — Herb ( nonofficial ) . 



