184 POWDERED VEGETABLE DRUGS 



3. (Fig. 3.) ACHILLEA. Yarrow, Milfoil. 

 Fl. ex. 30. 



Schafgarbe, Schafgrippe, G. Millefeuille, Herbe aux charpentiers, Fr. 



The flowering parts of Achillea Millefolium L., Composite. 



Grayish green. 



Aromatically fragrant, resembling chamomille. 



Bitter, astringent, somewhat saline. 



Epidermal cells (upper and lower) of leaves tabular with wavy 

 vertical walls. Hair cells simple with one to six basal cells and long 

 apical cell; walls moderately thick, smooth. A few bladdery glandular 

 hairs. Stomata on upper and lower epidermis. Two or three rows 

 of palisade cells. Spongy tissue of spheroidal cells. Parenchyma, 

 bast, tracheids, spiral ducts. Fibers with prismatic crystals of calcium 

 oxalate, from stems, petioles and veins. Pollen grains characteristic 

 of the order. 



Ash should not exceed 12 per cent. 



On account of its cheapness and wide distribution this drug is 

 rarely adulterated. The following species indigenous to Europe are 

 sometimes employed: A. ptarmicaL., A. aceratum~L., A. ncibilis'L., A. 

 moschata L., A. atrata L., A. Nana L. 



