CHENOPODIUM 



197 



Allied Plants. Under the name of Herba Chenopodii, the Aus- 

 trian Pharmacopoeia recognizes Chenopodium ambrosioides. This 

 plant, also known as Mexican Tea resembles very closely Cheno- 



FIG. 84. American wormseed. Fruiting branches of Chenopodium ambrosi- 

 oides anthelminticum. From Bulletin No. 26, U. S. Department of Agri- 

 culture. 



podium ambrosioides anthelminticum, and is widely distributed in 

 the United States. It is an annual with oblong-lanceolate, nearly 

 entire or repand-toothed leaves and has densely flowered, leafy 

 spikes. Microscopically it is characterized by possessing glandular 



