ACHILLEA MILLEFOLIUM. 



YARROW, OR MILFOIL. 



Eootstock perennial, creeping extensively under- 

 ground, with smooth reddish stolons. Stems 2 to 8 

 feet, erect, furrowed, woolly or sub-glabrous. Stem- 

 leaves lanceolate ; radical leaves stalked, both doubly 

 pinnatifid; lobes cut into linear segments. Heads 

 corymbose, dense. Phyllodes oblong, obtuse, glabrous. 

 Flowers white or pink. Eay flowers few. Ligule 

 broad as long. Disc flowers perfect, five-toothed. 

 Fruit oblong, compressed, shining. Flowers June to 

 September. Native of Northern Europe, Northern 

 and Western Asia, Northern India, and North 

 America. 



ANALYSIS. 



174 



